Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to San Antonio from C$ 474

YOW — SAT
26 Oct — 2 Nov1
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

Sat 10/105:20 p.m. -
1 stop6h 30m
Wed 14/1012:50 p.m. -
1 stop8h 45m
Deal found 22/9C$ 767
Fri 30/109:45 a.m. -
2 stops10h 25m
Tue 3/119:35 a.m. -
2 stops10h 41m
Deal found 21/9C$ 768
Thu 10/127:00 a.m. -
2 stops13h 43m
Sun 13/125:00 a.m. -
2 stops11h 58m
Deal found 26/9C$ 792
Thu 10/125:30 a.m. -
2 stops11h 33m
Sun 13/127:38 a.m. -
2 stops16h 06m
Deal found 25/9C$ 826
Thu 10/129:45 a.m. -
1 stop12h 04m
Sun 13/126:45 a.m. -
1 stop14h 11m
Deal found 23/9C$ 854
Sat 26/126:15 a.m. -
2 stops17h 44m
Fri 1/16:45 a.m. -
2 stops11h 42m
Deal found 23/9C$ 934
Sat 26/129:45 a.m. -
1 stop12h 12m
Fri 1/16:45 a.m. -
1 stop6h 24m
Deal found 23/9C$ 1,038

Find flight deals from Ottawa to San Antonio

Round-trip from

C$ 767

Popular in

March

Cheapest in

November

Average price

C$ 832
United Airlines
  • United Airlines
  • 10/10-14/10
  • 3 total stops
  • 22h 12m total
  • Ottawa to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Sun 3/1

5:10 a.m.-10:59 p.m.

2 stops18h 49m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 529
Quickest round-trip

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Sat 2/1

6:15 a.m.-4:54 p.m.

1 stop11h 39m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 620

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Sun 3/1

5:40 p.m.-8:12 p.m.

2 stops27h 32m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 658

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Sat 2/1

5:40 p.m.-11:58 a.m.

3 stops43h 18m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 741

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Fri 30/10

9:45 a.m.-11:35 p.m.

2 stops14h 50m

San Antonio

Tue 3/11

12:45 p.m.-9:56 p.m.

1 stop8h 11m

C$ 767

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Sat 10/10

6:00 a.m.-4:31 p.m.

2 stops11h 31m

San Antonio

Wed 14/10

5:30 a.m.-4:38 p.m.

2 stops10h 08m

C$ 767

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Thu 10/12

6:15 a.m.-10:57 p.m.

1 stop17h 42m

San Antonio

Sun 13/12

5:15 a.m.-2:09 p.m.

2 stops7h 54m

C$ 768

OttawaSan Antonio

YOW Ottawa - SAT San Antonio

YOWSAT

Ottawa

Thu 10/12

7:00 a.m.-7:43 p.m.

2 stops13h 43m

San Antonio

Sun 13/12

5:00 a.m.-5:58 p.m.

2 stops11h 58m

C$ 792

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/9

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

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?

Airfare is below average for this route at the moment.

Ottawa to San Antonio flights typically cost between C$ 813 and C$ 987 in October.
The cheapest round-trip price found within the last 5 days was C$ 767 on United Airlines (10 Oct-14 Oct).

Reviews of airlines servicing San Antonio

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
10,248 reviews
Check prices

Food

6.7

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.4
Good
10,248 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Food

6.7

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

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

    For as low as C$ 767, United Airlines can have you in San Antonio from Ottawa in 14h 50m. 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$ 422, was found to be the cheapest airline from Ottawa to San Antonio.. You may be able to fly from Ottawa to San Antonio for 42% 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

Top airline flying from Ottawa to San Antonio

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 422AverageC$ 549FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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.