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Cheap flights from Ottawa to San Antonio from C$ 365

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAT
15 Jul — 22 Jul1
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 15 June 2026.

Tue 8/1212:30 p.m.
YOW
-
SAT
2 stops11h 18m
United Airlines
Sat 12/125:00 p.m.
SAT
-
YOW
2 stops19h 26m
United Airlines
Deal found 13/6C$ 622
Tue 7/77:30 p.m.
YOW
-
SAT
2 stops13h 57m
United Airlines
Wed 15/76:40 a.m.
SAT
-
YOW
1 stop6h 19m
United Airlines
Deal found 14/6C$ 647
Tue 11/86:25 a.m.
YOW
-
SAT
1 stop6h 27m
United Airlines
Tue 18/86:30 a.m.
SAT
-
YOW
1 stop14h 05m
United Airlines
Deal found 12/6C$ 649
Wed 2/94:00 p.m.
YOW
-
SAT
1 stop6h 13m
Air Canada
Sat 5/99:00 a.m.
SAT
-
YOW
1 stop7h 10m
Air Canada
Deal found 14/6C$ 650
Tue 14/76:00 a.m.
YOW
-
SAT
1 stop5h 59m
Multiple Airlines
Thu 23/78:50 a.m.
SAT
-
YOW
1 stop7h 20m
Multiple Airlines
Deal found 14/6C$ 664
Wed 2/95:20 p.m.
YOW
-
SAT
1 stop6h 31m
United Airlines
Sat 5/95:30 p.m.
SAT
-
YOW
2 stops15h 26m
United Airlines
Deal found 14/6C$ 674
Tue 7/76:25 a.m.
YOW
-
SAT
2 stops10h 14m
United Airlines
Tue 14/76:40 a.m.
SAT
-
YOW
2 stops14h 25m
United Airlines
Deal found 14/6C$ 731
Tue 14/77:30 p.m.
YOW
-
SAT
2 stops13h 57m
United Airlines
Thu 23/77:20 p.m.
SAT
-
YOW
2 stops18h 50m
United Airlines
Deal found 14/6C$ 742
Thu 18/610:44 a.m.
YOW
-
SAT
1 stop6h 46m
Multiple Airlines
Thu 25/69:00 a.m.
SAT
-
YOW
1 stop14h 45m
Multiple Airlines
Deal found 11/6C$ 811
Wed 29/76:05 a.m.
YOW
-
SAT
2 stops14h 45m
United Airlines
Wed 5/89:37 a.m.
SAT
-
YOW
3 stops13h 17m
United Airlines
Deal found 13/6C$ 815

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 15 June 2026.

Round-trip from

C$ 622

One-way from

C$ 365

Popular in

March

Cheapest in

December

Average price

C$ 799
United Airlines
  • United Airlines
  • 8/12-12/12
  • 3 total stops
  • 32h 02m total
  • Ottawa to San Antonio
Search Deals
United Airlines
  • United Airlines
  • 4/7
  • 2 total stops
  • 12h 38m total
  • Ottawa to San Antonio
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 15 June 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

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 8/12

12:30 p.m.-10:48 p.m.

2 stops11h 18m

San Antonio

Sat 12/12

5:00 p.m.-1:26 p.m.

2 stops19h 26m

C$ 622

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 7/7

6:00 a.m.-10:59 a.m.

1 stop5h 59m

San Antonio

Mon 13/7

6:27 a.m.-10:05 p.m.

1 stop14h 38m

C$ 647

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 7/7

6:00 a.m.-10:59 a.m.

1 stop5h 59m

San Antonio

Tue 14/7

6:40 a.m.-5:07 p.m.

1 stop9h 27m

C$ 647

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 21/8

3:10 p.m.-10:39 p.m.

2 stops8h 29m

San Antonio

Tue 25/8

5:30 a.m.-5:16 p.m.

2 stops10h 46m

C$ 647

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 11/8

6:25 a.m.-11:52 a.m.

1 stop6h 27m

San Antonio

Tue 18/8

6:30 a.m.-9:35 p.m.

1 stop14h 05m

C$ 649
Quickest round-trip

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Wed 2/9

4:00 p.m.-9:13 p.m.

1 stop6h 13m

San Antonio

Sat 5/9

9:00 a.m.-5:10 p.m.

1 stop7h 10m

C$ 650
Cheapest one-way

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 11/8

7:34 p.m.-11:52 a.m.

2 stops17h 18m

C$ 365

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sat 4/7

6:05 a.m.-5:43 p.m.

2 stops12h 38m

C$ 365
Quickest one-way

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Thu 9/7

6:25 a.m.-4:29 p.m.

1 stop11h 04m

C$ 366

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Tue 11/8

6:25 p.m.-6:54 p.m.

3 stops49h 29m

C$ 419

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 15 June 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
9,831 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

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
9,831 reviews
United Airlines
7.4
Good
9,831 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

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$ 622, United Airlines can have you in San Antonio from Ottawa in 11h 18m. 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$ 417, was found to be the cheapest airline from Ottawa to San Antonio.. You may be able to fly from Ottawa to San Antonio for 44% 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

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Alternative routes for Ottawa to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 417AverageC$ 542FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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