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Cheap flights from Ontario to Ottawa from $325

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Ottawa departing on 8/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:36 pm - 12:50 am
ONT
-
YOW
24h 14m
2 stops
Multiple Airlines Logo
8:15 pm - 10:52 pm
YOW
-
ONT
29h 37m
2 stops
$790Multiple Airlines
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
6:53 pm - 10:39 am
ONT
-
YOW
12h 46m
2 stops
United Airlines Logo
12:30 pm - 8:20 pm
YOW
-
ONT
10h 50m
2 stops
$793United Airlines
Sat, Dec 5 - Tue, Dec 8
Multiple Airlines Logo
9:36 pm - 12:50 am
ONT
-
YOW
24h 14m
2 stops
Multiple Airlines Logo
2:00 pm - 5:21 pm
YOW
-
ONT
30h 21m
3 stops
$808Multiple Airlines
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
6:10 am - 9:35 pm
ONT
-
YOW
12h 25m
1 stop
United Airlines Logo
10:44 am - 10:51 pm
YOW
-
ONT
15h 07m
1 stop
$816United Airlines
Thu, Jul 16 - Thu, Jul 23
Multiple Airlines Logo
6:20 am - 5:58 pm
ONT
-
YOW
32h 38m
2 stops
Multiple Airlines Logo
8:15 pm - 10:45 pm
YOW
-
ONT
29h 30m
2 stops
$819Multiple Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
1:50 pm - 1:59 pm
ONT
-
YOW
21h 09m
2 stops
United Airlines Logo
5:20 pm - 10:35 pm
YOW
-
ONT
8h 15m
1 stop
$821United Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
6:10 am - 10:05 pm
ONT
-
YOW
12h 55m
2 stops
United Airlines Logo
5:20 pm - 10:51 pm
YOW
-
ONT
8h 31m
1 stop
$822United Airlines
Sat, Aug 1 - Sat, Aug 8
United Airlines Logo
7:00 am - 9:35 pm
ONT
-
YOW
11h 35m
1 stop
United Airlines Logo
10:37 am - 10:59 pm
YOW
-
ONT
15h 22m
2 stops
$826United Airlines
Sat, Aug 15 - Fri, Aug 21
United Airlines Logo
6:10 am - 9:35 pm
ONT
-
YOW
12h 25m
1 stop
United Airlines Logo
6:00 am - 10:35 pm
YOW
-
ONT
19h 35m
3 stops
$827United Airlines
Sat, Aug 8 - Sun, Aug 16
United Airlines Logo
5:00 am - 11:54 pm
ONT
-
YOW
15h 54m
2 stops
United Airlines Logo
6:05 am - 8:42 pm
YOW
-
ONT
17h 37m
2 stops
$831United Airlines
Wed, Jul 15 - Wed, Jul 22

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United Airlines flights from Ontario to Ottawa

Our best United Airlines deals on Ontario to Ottawa flight tickets
United Airlines
Dec 5
ONT6:53 pmOntario
12h 46m
2 stops
YOW10:39 amOttawa
Dec 8
YOW12:30 pmOttawa
10h 50m
2 stops
ONT8:20 pmOntario
$793
United Airlines
Jul 16
ONT6:10 amOntario
12h 25m
1 stop
YOW9:35 pmOttawa
Jul 23
YOW10:44 amOttawa
15h 07m
1 stop
ONT10:51 pmOntario
$816
United Airlines
Aug 4
ONT1:50 pmOntario
21h 09m
2 stops
YOW1:59 pmOttawa
Aug 11
YOW5:20 pmOttawa
8h 15m
1 stop
ONT10:35 pmOntario
$821

Air Canada flights from Ontario to Ottawa

Our best Air Canada deals on Ontario to Ottawa flight tickets
Air Canada
Dec 5
ONT5:00 amOntario
13h 34m
2 stops
YOW9:34 pmOttawa
Dec 8
YOW5:20 pmOttawa
19h 37m
2 stops
ONT9:57 amOntario
$878
Air Canada
Dec 5
ONT5:00 amOntario
13h 34m
2 stops
YOW9:34 pmOttawa
Dec 8
YOW5:20 pmOttawa
19h 37m
2 stops
ONT9:57 amOntario
$879
Air Canada
Aug 20
ONT1:18 pmOntario
16h 57m
2 stops
YOW9:15 amOttawa
Aug 24
YOW6:00 amOttawa
17h 53m
2 stops
ONT8:53 pmOntario
$949

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Ottawa 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, momondo users made 832,500 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from Ontario to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 7/16

9:36 pm-12:50 am

2 stops24h 14m

Ottawa

Wed 7/22

8:15 pm-10:52 pm

2 stops29h 37m

$790

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 12/5

6:53 pm-10:39 am

2 stops12h 46m

Ottawa

Tue 12/8

12:30 pm-8:20 pm

2 stops10h 50m

$793

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 7/16

9:36 pm-12:50 am

2 stops24h 14m

Ottawa

Wed 7/22

2:00 pm-5:21 pm

3 stops30h 21m

$808

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Thu 7/16

6:10 am-9:35 pm

1 stop12h 25m

Ottawa

Thu 7/23

10:44 am-10:51 pm

1 stop15h 07m

$816

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Tue 8/4

6:20 am-5:58 pm

2 stops32h 38m

Ottawa

Tue 8/11

8:15 pm-10:45 pm

2 stops29h 30m

$819

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Tue 8/4

1:50 pm-1:59 pm

2 stops21h 09m

Ottawa

Tue 8/11

5:20 pm-10:35 pm

1 stop8h 15m

$821
Quickest round-trip

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 8/1

6:10 am-10:05 pm

2 stops12h 55m

Ottawa

Sat 8/8

5:20 pm-10:51 pm

1 stop8h 31m

$822

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 8/15

7:00 am-9:35 pm

1 stop11h 35m

Ottawa

Fri 8/21

10:37 am-10:59 pm

2 stops15h 22m

$826

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Sat 8/8

6:10 am-9:35 pm

1 stop12h 25m

Ottawa

Sun 8/16

6:00 am-10:35 pm

3 stops19h 35m

$827

OntarioOttawa

ONT - YOW

ONTYOW

Ontario

Wed 7/15

5:00 am-11:54 pm

2 stops15h 54m

Ottawa

Wed 7/22

6:05 am-8:42 pm

2 stops17h 37m

$831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ottawa from

How to get the cheapest flight ticket from Ontario to Ottawa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Ottawa?

United Airlines is the most popular carrier operating from Ontario to Ottawa

What airlines fly to Ottawa?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Ottawa from Ontario according to our data. Air Canada is the first choice among our users, with 71% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 6 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Ottawa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Ottawa (ONT to YOW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Ottawa

Fastest flight time

7h 16m

Direct flights

None
The fastest flight from Ontario to Ottawa takes 7h 16m
There are no direct flights from Ontario to Ottawa. There are no popular flight routes from Ontario to Ottawa.
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Frequently asked questions about flying from Ontario to Ottawa

  • How far is Ontario to Ottawa by plane?

    There are 2330.9 mi between Ontario and Ottawa. In terms of flight time, this usually takes a little over 7h 16m.

  • When did momondo last update prices for flights from Ontario Airport to Ottawa Airport?

    Prices for flights from Ontario Airport to Ottawa Airport refresh daily.

  • How old do you have to be to fly from Ontario Airport to Ottawa Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Brockville
Petawawa
Smiths Falls
Perth
Calabogie
Prescott
Winchester
Wakefield

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Ottawa?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Ottawa. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Ottawa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ottawa from Ontario with this policy.

How can momondo help me find flights from Ontario to Ottawa?

momondo helps you find the best flight between Ontario and Ottawa by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Ottawa right now. Can momondo alert me if prices change?

Price alerts on flights to Ottawa from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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