Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to San Antonio from C$ 313

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAT
30 May — 6 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 30 April 2026.

Wed 2/96:25 a.m.
YOW
-
SAT
2 stops14h 28m
United Airlines
Sun 6/91:44 p.m.
SAT
-
YOW
1 stop7h 12m
United Airlines
Deal found 28/4C$ 484
Thu 11/66:25 a.m.
YOW
-
SAT
1 stop6h 47m
United Airlines
Thu 18/67:35 p.m.
SAT
-
YOW
2 stops25h 00m
United Airlines
Deal found 26/4C$ 512
Wed 2/96:00 a.m.
YOW
-
SAT
2 stops10h 09m
Air Canada
Sun 6/91:45 p.m.
SAT
-
YOW
2 stops10h 00m
Air Canada
Deal found 26/4C$ 575
Sat 13/65:50 p.m.
YOW
-
SAT
2 stops15h 37m
United Airlines
Sat 20/64:35 p.m.
SAT
-
YOW
2 stops15h 36m
United Airlines
Deal found 29/4C$ 583
Fri 15/55:05 a.m.
YOW
-
SAT
2 stops16h 44m
United Airlines
Sun 17/56:49 a.m.
SAT
-
YOW
1 stop6h 10m
United Airlines
Deal found 29/4C$ 679

Find 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 30 April 2026.

Round-trip from

C$ 484

One-way from

C$ 313

Popular in

July

Cheapest in

December

Average price

C$ 651
United Airlines
  • United Airlines
  • 2/9-6/9
  • 3 total stops
  • 21h 40m total
  • Ottawa to San Antonio
Search Deals
United Airlines
  • United Airlines
  • 14/6
  • 2 total stops
  • 19h 54m total
  • Ottawa to San Antonio
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 273 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 30 April 2026.
Use the filters below to find and compare flights from Ottawa to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Wed 2/9

2:52 p.m.-10:38 p.m.

2 stops8h 46m

San Antonio

Sun 6/9

4:13 p.m.-9:11 a.m.

2 stops15h 58m

C$ 484
Cheapest one-way
Quickest one-way

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sun 14/6

5:05 a.m.-11:59 p.m.

2 stops19h 54m

C$ 313

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sun 14/6

2:15 p.m.-6:02 p.m.

3 stops28h 47m

C$ 504

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Sorted by cheapest first

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

How much does it cost to fly round-trip from Ottawa to San Antonio?

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 30 April 2026.
Get a feel of what it's like to fly with United Airlines 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
9,677 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

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
9,677 reviews
United Airlines
7.4
Good
9,677 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

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$ 484, United Airlines can have you in San Antonio from Ottawa in 8h 46m. The distance between Ottawa and San Antonio is about 2652 km.

  • What is the cheapest airline to fly from Ottawa to San Antonio round-trip?

    United Airlines, at C$ 409, was found to be the cheapest airline from Ottawa to San Antonio.. You may be able to fly from Ottawa to San Antonio for 49% less than the average price by searching for this airline.

  • 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.

See more FAQs

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 Ottawa to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dallas/Fort Worth flights
Pearson Intl to Hobby flights
Pearson Intl to George Bush Intcntl flights
Pearson Intl to Love Field flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Hobby flights
Pearson Intl to Austin flights
Toronto Island to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to George Bush Intcntl flights
Ottawa to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Austin flights
Hamilton to Hobby flights
Pierre Elliott Trudeau Intl to Love Field flights
Region of Waterloo Intl to Hobby flights
Pearson Intl to San Antonio flights
Hamilton to Dallas/Fort Worth flights
Ottawa to Hobby flights
Ottawa to Love Field flights
Ottawa to George Bush Intcntl flights
Region of Waterloo Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to San Antonio flights
Pearson Intl to Lubbock flights
London to Dallas/Fort Worth flights
Ottawa to Austin flights
Pierre Elliott Trudeau Intl to El Paso flights
Pierre Elliott Trudeau Intl to Midland flights
Ottawa to El Paso flights
Pearson Intl to Corpus Christi flights
Pearson Intl to El Paso flights
Pierre Elliott Trudeau Intl to McAllen flights
London to Love Field flights
Pearson Intl to Brownsville flights
Pearson Intl to Killeen flights
Ottawa to Killeen flights
Pierre Elliott Trudeau Intl to Waco flights
Pearson Intl to Laredo flights
Hamilton to Austin flights

Top airline flying from Ottawa to San Antonio

Discover the top airline 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 30 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 409AverageC$ 617FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.