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Cheap flights from Seattle to Phoenix from C$ 108

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHX
3 Aug — 10 Aug1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Phoenix are usually found in September or August, booked 71 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap flight deals from Seattle to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 July 2025.

Round-trip from

C$ 145

One-way from

C$ 108

Popular in

December

Cheapest in

September

Average price

C$ 252
Frontier
  • Frontier
  • 17/10-19/10
  • Nonstop
  • 6h 21m total
  • Seattle to Phoenix
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 30/8
  • Nonstop
  • 3h 05m total
  • Seattle to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Seattle to Phoenix

Cheapest flights from Seattle to Phoenix
Explore the most affordable flight options available from Seattle to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.

Thu 31/76:03 p.m.SEA - PHX
Nonstop3h 08mFrontier
Mon 4/86:48 a.m.PHX - SEA
Nonstop3h 14mFrontier
Deal found 27/7C$ 144
Wed 1/108:55 p.m.SEA - PHX
Nonstop3h 00mMultiple Airlines
Thu 9/102:21 p.m.PHX - SEA
Nonstop3h 17mMultiple Airlines
Deal found 27/7C$ 182
Tue 18/1111:20 a.m.SEA - PHX
Nonstop2h 55mAlaska Airlines
Tue 18/115:03 p.m.PHX - SEA
Nonstop3h 12mAlaska Airlines
Deal found 26/7C$ 210
Wed 3/97:10 a.m.SEA - PHX
Nonstop2h 56mDelta
Wed 10/911:05 a.m.PHX - SEA
Nonstop3h 09mDelta
Deal found 29/7C$ 215
Sun 31/87:55 a.m.SEA - PHX
Nonstop3h 05mHawaiian Airlines
Sun 31/81:54 p.m.PHX - SEA
Nonstop3h 04mHawaiian Airlines
Deal found 26/7C$ 221
Tue 26/86:45 a.m.SEA - PHX
1 stop5h 45mSouthwest
Tue 2/91:50 p.m.PHX - SEA
Nonstop3h 00mSouthwest
Deal found 27/7C$ 232
Fri 29/83:19 p.m.SEA - PHX
1 stop7h 50mUnited Airlines
Wed 3/93:41 p.m.PHX - SEA
1 stop5h 13mUnited Airlines
Deal found 28/7C$ 278

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 July 2025.
Use the filters below to find and compare flights from Seattle to Phoenix that are best for you.

Fly from

Seattle

Fly to

Phoenix

Route

Depart

Return

Price

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 17/10

12:58 p.m.-4:02 p.m.

Nonstop3h 04m

Phoenix Sky Harbor Intl

Sun 19/10

2:21 p.m.-5:38 p.m.

Nonstop3h 17m

C$ 145

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 1/10

8:55 p.m.-11:55 p.m.

Nonstop3h 00m

Phoenix Sky Harbor Intl

Thu 9/10

2:21 p.m.-5:38 p.m.

Nonstop3h 17m

C$ 182

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Tue 18/11

11:20 a.m.-3:15 p.m.

Nonstop2h 55m

Phoenix Sky Harbor Intl

Tue 18/11

5:03 p.m.-7:15 p.m.

Nonstop3h 12m

C$ 210

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 3/9

7:10 a.m.-10:06 a.m.

Nonstop2h 56m

Phoenix Sky Harbor Intl

Wed 10/9

11:05 a.m.-2:14 p.m.

Nonstop3h 09m

C$ 215

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 31/8

7:55 a.m.-11:00 a.m.

Nonstop3h 05m

Phoenix Sky Harbor Intl

Sun 31/8

1:54 p.m.-4:58 p.m.

Nonstop3h 04m

C$ 221

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Tue 26/8

6:45 a.m.-12:30 p.m.

1 stop5h 45m

Phoenix Sky Harbor Intl

Tue 2/9

1:50 p.m.-4:50 p.m.

Nonstop3h 00m

C$ 232

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 29/8

3:19 p.m.-11:09 p.m.

1 stop7h 50m

Phoenix Sky Harbor Intl

Wed 3/9

3:41 p.m.-8:54 p.m.

1 stop5h 13m

C$ 278

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 30/8

7:55 a.m.-11:00 a.m.

Nonstop3h 05m

C$ 108

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 27/8

11:50 a.m.-2:50 p.m.

Nonstop3h 00m

C$ 110

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 30/8

7:55 a.m.-11:00 a.m.

Nonstop3h 05m

C$ 115

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 13 results
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Best time to book a flight from Seattle to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Seattle 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 Seattle to Phoenix

How far ahead should I book a flight from Seattle to Phoenix?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Phoenix. Price data was last updated on 25 July 2025.

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Phoenix. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Phoenix?

Currently, September is the cheapest month in which you can book a flight from Seattle to Phoenix (average of C$ 247). Flying from Seattle to Phoenix in March is currently the most expensive (average of C$ 316). 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 SEA to PHX?

Find hourly flight availability from Seattle to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.

It’s typically best to fly out from Seattle to Phoenix in the evening. Doing so could potentially save you 37% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Seattle to Phoenix?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Phoenix. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Seattle to Phoenix flight should consider departing on Saturday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Phoenix

Explore weekly flight availability from Seattle to Phoenix. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 July 2025.

The most flights from SEA to PH1 are scheduled on a Monday (55 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (29 on average).

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated 29 July 2025.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta from Seattle to Phoenix. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Phoenix. 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 from for flights from Seattle to Phoenix?

    For a flight from Seattle to Phoenix, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 44 outbound flights to Phoenix per day. 5 airlines have flights to Phoenix from Seattle/Tacoma Intl on a regular basis.

  • What are the cheapest airlines flying from Seattle to Phoenix round-trip?

    Frontier, at C$ 145, was found to be the cheapest airline from Seattle to Phoenix.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. These flights start at 49% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Phoenix one-way?

    C$ 108 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from C$ 110 and C$ 115, respectively.

  • What are the most reliable airlines from Seattle to Phoenix?

    The top 3 most reliable airlines when flying from Seattle to Phoenix are Air France (96%), Virgin Atlantic (96%) and Aeromexico (95%).

  • Can I find deals for flights from Seattle to Phoenix that include hotel bookings?

    Yes. In addition to deals on Seattle to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Phoenix?

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

  • Can I find deals for business class flights from Seattle to Phoenix?

    Yes. Cheapflights offers flight deals from Seattle to Phoenix 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 Seattle to Phoenix?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Phoenix (average of C$ 247). Flying from Seattle to Phoenix in March is currently the most expensive (average of C$ 316). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Seattle to Phoenix

Discover the top 5 airlines that operate flights from Seattle to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 59AverageC$ 184FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 101AverageC$ 239FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 132AverageC$ 355FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
SouthwestCheapestC$ 169AverageC$ 344FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 189AverageC$ 366FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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Can Cheapflights find flights from Seattle to Phoenix with no change fees?

Need flexible booking options for your flight to Phoenix from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Phoenix become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Phoenix 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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