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Cheap flights from Ottawa to San Antonio from C$ 295

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAT
13 Nov — 20 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Ottawa to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to San Antonio (SAT). 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 14 October 2025.

Round-trip from

C$ 421

One-way from

C$ 295

Popular in

May

Cheapest in

December

Average price

C$ 893
United Airlines
  • United Airlines
  • 23/2-25/2
  • 4 total stops
  • 29h 37m total
  • Ottawa to San Antonio
Search Deals
United Airlines
  • United Airlines
  • 28/11
  • 2 total stops
  • 11h 22m total
  • Ottawa to San Antonio
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 315 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 94 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Ottawa to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to San Antonio
Explore the most affordable flight options available from Ottawa to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2025.

Mon 10/117:30 p.m.YOW - SAT
1 stop16h 36mUnited Airlines
Mon 17/117:30 p.m.SAT - YOW
2 stops13h 56mUnited Airlines
Deal found 13/10C$ 421
Sat 25/106:05 a.m.YOW - SAT
2 stops11h 40mUnited Airlines
Tue 11/117:30 p.m.SAT - YOW
2 stops13h 56mUnited Airlines
Deal found 11/10C$ 489
Mon 10/117:30 p.m.YOW - SAT
1 stop16h 36mMultiple Airlines
Mon 17/115:13 p.m.SAT - YOW
1 stop16h 13mMultiple Airlines
Deal found 13/10C$ 506
Thu 23/103:50 p.m.YOW - SAT
2 stops26h 00mMultiple Airlines
Tue 11/117:37 p.m.SAT - YOW
1 stop20h 48mMultiple Airlines
Deal found 11/10C$ 551
Thu 23/106:05 a.m.YOW - SAT
2 stops10h 20mUnited Airlines
Tue 11/115:30 a.m.SAT - YOW
2 stops10h 02mUnited Airlines
Deal found 11/10C$ 590
Mon 29/122:15 p.m.YOW - SAT
1 stop7h 09mUnited Airlines
Mon 26/12:15 p.m.SAT - YOW
2 stops8h 39mUnited Airlines
Deal found 14/10C$ 638
Mon 29/124:20 p.m.YOW - SAT
1 stop26h 18mMultiple Airlines
Mon 26/16:00 a.m.SAT - YOW
1 stop10h 13mMultiple Airlines
Deal found 14/10C$ 649

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to San Antonio 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 14 October 2025.
Use the filters below to find and compare flights from Ottawa to San Antonio that are best for you.

Fly from

Ottawa

Fly to

San Antonio

Route

Depart

Return

Price

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 23/2

7:30 p.m.-12:22 p.m.

2 stops17h 52m

San Antonio

Wed 25/2

7:00 a.m.-4:30 p.m.

1 stop8h 30m

C$ 421

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 10/11

7:30 p.m.-11:06 a.m.

1 stop16h 36m

San Antonio

Mon 17/11

7:30 p.m.-10:26 a.m.

2 stops13h 56m

C$ 421

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sat 25/10

2:45 p.m.-10:35 p.m.

2 stops8h 50m

San Antonio

Tue 11/11

7:00 a.m.-4:32 p.m.

1 stop8h 32m

C$ 489

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 28/11

12:05 p.m.-10:27 p.m.

2 stops11h 22m

C$ 295

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 28/11

5:40 a.m.-11:31 a.m.

3 stops30h 51m

C$ 441

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

Best time to book a flight from Ottawa to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Ottawa 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 Ottawa to San Antonio

What is the cheapest month to book a flight from Ottawa to San Antonio?

Currently, October is the cheapest month in which you can book a flight from Ottawa to San Antonio (average of C$ 257). Flying from Ottawa to San Antonio in June is currently the most expensive (average of C$ 502). 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.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated 14 October 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,976 reviews
Check prices

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
8,976 reviews
United Airlines
7.4
Good
8,976 reviews
Check prices

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
Air Canada
7.1
Good
10,297 reviews
United Airlines
7.4
Good
8,976 reviews
Check prices

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

Related info for your journey

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

  • How long is the flight from Ottawa to San Antonio?

    For as low as C$ 421, United Airlines can have you in San Antonio from Ottawa in 17h 52m. The distance between Ottawa and San Antonio is about 2652 km.

  • What are the cheapest airlines flying from Ottawa to San Antonio round-trip?

    Air Canada, at C$ 694, was found to be the cheapest airline from Ottawa to San Antonio. An alternate airline flying to your destination would be United Airlines. You may be able to fly from Ottawa to San Antonio for 32% less than the average price by searching for these airlines.

  • Can I find deals for flights from Ottawa to San Antonio that include hotel bookings?

    Yes. In addition to deals on Ottawa to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to San Antonio?

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

  • Can I find deals for business class flights from Ottawa to San Antonio?

    Yes. Cheapflights offers flight deals from Ottawa to San Antonio 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 Ottawa to San Antonio?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to San Antonio (average of C$ 257). Flying from Ottawa to San Antonio in June is currently the most expensive (average of C$ 502). 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

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Top 2 airlines flying from Ottawa to San Antonio

Discover the top 2 airlines that operate flights from Ottawa to San Antonio. 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 14 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 694AverageC$ 925FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 800AverageC$ 925FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 Ottawa to San Antonio?

When you search for this flight from Ottawa to San Antonio, 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 Ottawa to San Antonio?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to San Antonio for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to San Antonio with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to San Antonio flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ottawa to San Antonio become cheaper?

Yes, Cheapflights offers price alerts on Ottawa to San Antonio 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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