What are the cheapest airlines to fly from Alberta to St. Louis one-way?

The cheapest airlines for a one-way flight from Alberta to St. Louis are American Airlines (C$ 249), Air Canada (C$ 316), and Alaska Airlines (C$ 317).

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What are the most popular airlines that fly from Alberta to St. Louis?

Before booking your flight from Alberta to St. Louis check out the most popular airlines for this route: Air Canada, Delta or United Airlines.

What is the cheapest month to fly from Alberta to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, January can be a great choice for travel to St. Louis. Flights to St. Louis from Alberta in January are about C$ 615 on average during January, but can be found for as low as C$ 338.

What airport do you fly into for flights to St. Louis from Alberta?

For a flight from Alberta to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 20.4 km from the centre of the city.

Can I find deals for flights from Alberta to St. Louis that include hotel bookings?

Yes. In addition to deals on Alberta to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Alberta to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alberta to St. Louis.

Can I find deals for business class flights from Alberta to St. Louis?

Yes. Cheapflights offers flight deals from Alberta to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 249+ Flights from Alberta to St. Louis

Cheap flight deals from Alberta to St. Louis

Round-trip from	C$ 422
One-way from	C$ 249
Popular in	November
Cheapest in	January
Average price	C$ 599

28/8-2/9
2 total stops
43h 07m total
Alberta to St. Louis

Search Deals

American Airlines
17/9
1 total stop
13h 03m total
Alberta to St. Louis

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Alberta to St. Louis

Cheapest flights from Alberta to St. Louis
Explore the most affordable flight options available from Alberta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Thu 28/88:55 a.m.YYC - STL

1 stop23h 16mMultiple Airlines

Tue 2/97:54 p.m.STL - YYC

1 stop19h 51mMultiple Airlines

Deal found 30/7C$ 422

Fri 5/96:29 a.m.YYC - STL

1 stop28h 01mAmerican Airlines

Sat 13/96:10 a.m.STL - YYC

1 stop18h 09mAmerican Airlines

Deal found 30/7C$ 443

Tue 9/95:17 p.m.YEG - STL

1 stop23h 17mAlaska Airlines

Tue 30/93:35 p.m.STL - YEG

1 stop20h 14mAlaska Airlines

Deal found 31/7C$ 477

Tue 9/93:17 p.m.YEG - STL

2 stops23h 27mUnited Airlines

Sat 27/95:28 p.m.STL - YEG

2 stops21h 40mUnited Airlines

Deal found 31/7C$ 483

Thu 25/912:20 a.m.YYC - STL

1 stop13h 58mAir Canada

Sun 28/91:30 p.m.STL - YYC

1 stop10h 46mAir Canada

Deal found 29/7C$ 563

Fri 12/96:15 a.m.YEG - STL

1 stop8h 03mAir Canada

Sat 27/99:15 a.m.STL - YEG

2 stops11h 48mAir Canada

Deal found 29/7C$ 587

Wed 13/86:15 a.m.YYC - STL

1 stop14h 35mUnited Airlines

Sat 16/88:54 a.m.STL - YYC

1 stop13h 54mUnited Airlines

Deal found 30/7C$ 594

Wed 13/86:40 a.m.YYC - STL

1 stop6h 49mDelta

Sat 16/83:30 p.m.STL - YYC

2 stops8h 27mDelta

Deal found 30/7C$ 627

Mon 8/912:05 a.m.YEG - STL

2 stops18h 02mDelta

Sat 27/96:01 a.m.STL - YEG

2 stops18h 16mDelta

Deal found 31/7C$ 666

Tue 29/712:30 a.m.YYC - STL

1 stop8h 11mWestJet

Tue 19/85:11 p.m.STL - YYC

1 stop19h 08mWestJet

Deal found 29/7C$ 675

Wed 10/912:05 a.m.YEG - STL

2 stops11h 26mMultiple Airlines

Fri 26/96:00 a.m.STL - YEG

1 stop11h 20mMultiple Airlines

Deal found 31/7C$ 685

Sat 13/99:25 a.m.YEG - STL

1 stop12h 44mWestJet

Sat 27/912:15 p.m.STL - YEG

2 stops13h 12mWestJet

Deal found 31/7C$ 688

Best flights from Alberta to St. Louis
Discover carefully curated flight deals from Alberta to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 July 2025.

Thu 28/88:55 a.m.YYC - STL

1 stop23h 16mMultiple Airlines

Tue 2/97:54 p.m.STL - YYC

1 stop19h 51mMultiple Airlines

Deal found 30/7C$ 422

Fri 5/96:29 a.m.YYC - STL

1 stop28h 01mAmerican Airlines

Sat 13/96:10 a.m.STL - YYC

1 stop18h 09mAmerican Airlines

Deal found 30/7C$ 443

Tue 9/95:17 p.m.YEG - STL

1 stop23h 17mAlaska Airlines

Tue 30/93:35 p.m.STL - YEG

1 stop20h 14mAlaska Airlines

Deal found 31/7C$ 477

Tue 9/93:17 p.m.YEG - STL

2 stops22h 02mUnited Airlines

Tue 30/93:23 p.m.STL - YEG

1 stop26h 02mUnited Airlines

Deal found 31/7C$ 483

Thu 25/912:20 a.m.YYC - STL

1 stop13h 58mAir Canada

Sun 28/91:30 p.m.STL - YYC

1 stop10h 46mAir Canada

Deal found 29/7C$ 563

Wed 13/86:40 a.m.YYC - STL

1 stop6h 49mDelta

Sat 16/83:30 p.m.STL - YYC

2 stops8h 27mDelta

Deal found 30/7C$ 627

Sat 13/99:25 a.m.YEG - STL

1 stop12h 44mWestJet

Sat 27/912:15 p.m.STL - YEG

2 stops13h 12mWestJet

Deal found 31/7C$ 688

Fri 12/96:15 a.m.YEG - STL

1 stop8h 03mAir Canada

Sat 27/99:15 a.m.STL - YEG

2 stops11h 48mAir Canada

Deal found 29/7C$ 587

Wed 13/86:15 a.m.YYC - STL

1 stop14h 35mUnited Airlines

Sat 16/88:54 a.m.STL - YYC

1 stop13h 54mUnited Airlines

Deal found 30/7C$ 594

Mon 8/912:05 a.m.YEG - STL

2 stops18h 02mDelta

Sat 27/96:01 a.m.STL - YEG

2 stops18h 16mDelta

Deal found 31/7C$ 666

Wed 10/912:05 a.m.YEG - STL

2 stops11h 26mMultiple Airlines

Fri 26/96:00 a.m.STL - YEG

1 stop11h 20mMultiple Airlines

Deal found 31/7C$ 685

Sat 30/812:30 a.m.YYC - STL

1 stop14h 36mWestJet

Wed 3/911:29 a.m.STL - YYC

2 stops8h 11mWestJet

Deal found 31/7C$ 699

Last-minute flights from Alberta to St. Louis
Discover last-minute flight deals from Alberta to St. Louis. Data last updated 31 July 2025 and is based on user searches.

Wed 6/812:55 a.m.YEG - STL

1 stop17h 50mAir Canada

Sun 10/81:30 p.m.STL - YEG

1 stop9h 19mAir Canada

Deal found 29/7C$ 958

Wed 6/812:05 a.m.YEG - STL

2 stops11h 29mWestJet

Sun 10/811:18 a.m.STL - YEG

2 stops10h 54mWestJet

Deal found 29/7C$ 1,214

Thu 7/89:25 a.m.YEG - STL

2 stops11h 09mDelta

Sun 10/88:50 a.m.STL - YEG

2 stops10h 17mDelta

Deal found 30/7C$ 1,092

Thu 7/86:30 p.m.YEG - STL

3 stops23h 11mMultiple Airlines

Sun 10/810:47 a.m.STL - YEG

3 stops23h 38mMultiple Airlines

Deal found 29/7C$ 1,244

Thu 7/89:25 a.m.YEG - STL

2 stops13h 28mDelta

Sun 10/811:18 a.m.STL - YEG

1 stop5h 40mDelta

Deal found 30/7C$ 1,092

Wed 13/86:15 a.m.YYC - STL

1 stop14h 35mUnited Airlines

Sat 16/88:54 a.m.STL - YYC

1 stop13h 54mUnited Airlines

Deal found 30/7C$ 594

Wed 13/86:40 a.m.YYC - STL

1 stop6h 49mDelta

Sat 16/83:30 p.m.STL - YYC

2 stops8h 27mDelta

Deal found 30/7C$ 627

Tue 26/81:10 a.m.YYC - STL

1 stop13h 11mAir Canada

Mon 1/94:00 p.m.STL - YYC

1 stop8h 25mAir Canada

Deal found 30/7C$ 614

Thu 28/88:55 a.m.YYC - STL

1 stop23h 16mMultiple Airlines

Tue 2/97:54 p.m.STL - YYC

1 stop19h 51mMultiple Airlines

Deal found 30/7C$ 422

Sat 30/812:30 a.m.YYC - STL

1 stop14h 36mWestJet

Wed 3/911:29 a.m.STL - YYC

2 stops8h 11mWestJet

Deal found 31/7C$ 699

Sun 31/86:29 a.m.YYC - STL

1 stop12h 49mAmerican Airlines

Wed 3/99:56 a.m.STL - YYC

1 stop14h 23mAmerican Airlines

Deal found 31/7C$ 512

One-way flights from Alberta to St. Louis
Search for one-way flight options from Alberta to St. Louis. Find affordable one-way fares based on user searches. Data last updated 31 July 2025.

Wed 17/96:29 a.m.YYC - STL

1 stop13h 03mAmerican Airlines

Deal found 29/7C$ 249

Sat 13/96:15 a.m.YEG - STL

2 stops31h 49mMultiple Airlines

Deal found 29/7C$ 252

Sat 13/97:00 a.m.YYC - STL

2 stops31h 04mMultiple Airlines

Deal found 30/7C$ 282

Sat 13/97:00 a.m.YYC - STL

1 stop7h 18mAir Canada

Deal found 30/7C$ 316

Mon 29/96:15 a.m.YYC - STL

1 stop7h 24mAlaska Airlines

Deal found 31/7C$ 317

Sat 13/911:20 a.m.YEG - STL

1 stop7h 18mAir Canada

Deal found 29/7C$ 325

Fri 22/87:55 a.m.YYC - STL

2 stops14h 19mDelta

Deal found 29/7C$ 334

Thu 28/811:44 a.m.YEG - STL

1 stop11h 15mAlaska Airlines

Deal found 29/7C$ 334

Sun 28/912:30 a.m.YYC - STL

1 stop14h 35mWestJet

Deal found 31/7C$ 387

Wed 27/812:05 a.m.YEG - STL

2 stops15h 01mWestJet

Deal found 29/7C$ 422

Wed 31/1212:45 a.m.YEG - STL

1 stop7h 19mDelta

Deal found 29/7C$ 458

Fri 15/83:17 p.m.YEG - STL

1 stop5h 33mUnited Airlines

Deal found 30/7C$ 464

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 28/8

8:55 a.m.-9:11 a.m.

1 stop23h 16m

Lambert-St Louis

Tue 2/9

7:54 p.m.-2:45 p.m.

1 stop19h 51m

C$ 422

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 5/9

6:29 a.m.-11:30 a.m.

1 stop28h 01m

Lambert-St Louis

Sat 13/9

6:10 a.m.-11:19 p.m.

1 stop18h 09m

C$ 443

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 9/9

5:17 p.m.-5:34 p.m.

1 stop23h 17m

Lambert-St Louis

Tue 30/9

3:35 p.m.-10:49 a.m.

1 stop20h 14m

C$ 477

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 9/9

3:17 p.m.-2:19 p.m.

2 stops22h 02m

Lambert-St Louis

Tue 30/9

3:23 p.m.-4:25 p.m.

1 stop26h 02m

C$ 483

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 25/9

12:20 a.m.-3:18 p.m.

1 stop13h 58m

Lambert-St Louis

Sun 28/9

1:30 p.m.-11:16 p.m.

1 stop10h 46m

C$ 563

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 12/9

6:15 a.m.-3:18 p.m.

1 stop8h 03m

Lambert-St Louis

Sat 27/9

9:15 a.m.-8:03 p.m.

2 stops11h 48m

C$ 587

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 13/8

6:15 a.m.-9:50 p.m.

1 stop14h 35m

Lambert-St Louis

Sat 16/8

8:54 a.m.-9:48 p.m.

1 stop13h 54m

C$ 594

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 13/8

6:40 a.m.-2:29 p.m.

1 stop6h 49m

Lambert-St Louis

Sat 16/8

3:30 p.m.-10:57 p.m.

2 stops8h 27m

C$ 627

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Mon 8/9

12:05 a.m.-7:07 p.m.

2 stops18h 02m

Lambert-St Louis

Sat 27/9

6:01 a.m.-11:17 p.m.

2 stops18h 16m

C$ 666

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Wed 10/9

12:05 a.m.-12:31 p.m.

2 stops11h 26m

Lambert-St Louis

Fri 26/9

6:00 a.m.-4:20 p.m.

1 stop11h 20m

C$ 685

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 25 results

Best time to book a flight from Alberta to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Alberta with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Alberta to St. Louis

What is the cheapest month to book a flight from Alberta to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 365). Flying from Alberta to St. Louis in September is currently the most expensive (average of C$ 491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AB to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Alberta to St. Louis as you normally would.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Alberta to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

Delta

8.0

Very good

7,981 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

United Airlines

7.4

Good

8,900 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

WestJet

7.2

Good

2,978 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

Related info for your journey

What airport do you fly into for flights to St. Louis from Alberta?
For a flight from Alberta to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 20.4 km from the centre of the city.
What are the cheapest airlines to fly from Alberta to St. Louis one-way?
The cheapest airlines for a one-way flight from Alberta to St. Louis are American Airlines (C$ 249), Air Canada (C$ 316), and Alaska Airlines (C$ 317).
Can I find deals for flights from Alberta to St. Louis that include hotel bookings?
Yes. In addition to deals on Alberta to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Alberta to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alberta to St. Louis.
Can I find deals for business class flights from Alberta to St. Louis?
Yes. Cheapflights offers flight deals from Alberta to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Alberta to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 365). Flying from Alberta to St. Louis in September is currently the most expensive (average of C$ 491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Chesterfield

St. Peters

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Alberta to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 337	AverageC$ 727	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 341	AverageC$ 671	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 378	AverageC$ 436	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 445	AverageC$ 697	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Alberta to St. Louis?

When you search for this flight from Alberta to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Alberta to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Alberta by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Alberta to St. Louis with no change fees?

Yes! Cheapflights helps users easily find flights from Alberta to St. Louis with no change fees.

Can Cheapflights notify me if prices for flights from Alberta to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Alberta to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Alberta to St. Louis from C$ 249

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Alberta to St. Louis

Keep the following information in mind while searching for Alberta to St. Louis flight deals. Data was last updated 31 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Alberta to St. Louis

Cheapest flights from Alberta to St. LouisExplore the most affordable flight options available from Alberta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Explore the most affordable flight options available from Alberta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Alberta to St. Louis that are best for you.

Best time to book a flight from Alberta to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Alberta with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Alberta to St. Louis

What is the cheapest month to book a flight from Alberta to St. Louis?

What is the cheapest time of day to fly from AB to STL?

Find hourly flight availability from Alberta to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Alberta to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Alberta to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Alberta?

What are the cheapest airlines to fly from Alberta to St. Louis one-way?

Can I find deals for flights from Alberta to St. Louis that include hotel bookings?

How can I find direct flights from Alberta to St. Louis?

Can I find deals for business class flights from Alberta to St. Louis?

What is the cheapest month to book a flight from Alberta to St. Louis?

Travelling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Alberta to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Alberta to St. Louis

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Alberta to St. Louis?

Why should you use Cheapflights to find cheap flight tickets from Alberta to St. Louis?

Can Cheapflights find flights from Alberta to St. Louis with no change fees?

Can Cheapflights notify me if prices for flights from Alberta to St. Louis become cheaper?

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Cheapest flights from Alberta to St. Louis
Explore the most affordable flight options available from Alberta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.