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Cheap flights from Ottawa to the United States from C$ 158

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to the United States departing on 28/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ottawa to the United States

Cheap round-trip flights

Porter Airlines Logo
4:25 p.m. - 7:41 p.m.YOW-MCO
3h 16mdirect
Porter Airlines Logo
1:45 p.m. - 4:57 p.m.MCO-YOW
3h 12mdirect
C$ 313Porter Airlines
Find Deal
Sat, 6 Sep - Sun, 14 Sep
Porter Airlines Logo
7:00 a.m. - 12:42 p.m.YOW-MCO
5h 42m1 stop
Porter Airlines Logo
1:40 p.m. - 9:00 p.m.MCO-YOW
7h 20m1 stop
C$ 314Porter Airlines
Find Deal
Fri, 3 Oct - Tue, 7 Oct
Air Canada Logo
6:00 a.m. - 11:45 a.m.YOW-FLL
5h 45m1 stop
Air Canada Logo
8:00 a.m. - 3:04 p.m.FLL-YOW
7h 04m1 stop
C$ 331Air Canada
Find Deal
Tue, 23 Sep - Wed, 8 Oct
Air Canada Logo
5:15 a.m. - 9:47 a.m.YOW-JFK
4h 32m1 stop
Air Canada Logo
9:00 a.m. - 1:51 p.m.JFK-YOW
4h 51m1 stop
C$ 335Air Canada
Find Deal
Sun, 5 Oct - Sun, 12 Oct
WestJet Logo
5:55 a.m. - 11:39 a.m.YOW-LAS
8h 44m1 stop
WestJet Logo
10:00 a.m. - 12:40 a.m.LAS-YOW
11h 40m2 stops
C$ 363WestJet
Find Deal
Wed, 24 Sep - Sun, 28 Sep
WestJet Logo
7:15 p.m. - 12:32 p.m.YOW-LAS
20h 17m2 stops
WestJet Logo
6:20 p.m. - 6:45 a.m.LAS-YOW
9h 25m1 stop
C$ 365WestJet
Find Deal
Sun, 28 Sep - Thu, 2 Oct
Air Transat Logo
10:50 a.m. - 12:30 p.m.YOW-EWR
1h 40mdirect
Air Transat Logo
6:25 p.m. - 8:05 p.m.EWR-YOW
1h 40mdirect
C$ 372Air Transat
Find Deal
Thu, 11 Sep - Mon, 15 Sep
Air Transat Logo
4:05 p.m. - 5:40 p.m.YOW-EWR
1h 35mdirect
Air Transat Logo
6:25 p.m. - 8:05 p.m.EWR-YOW
1h 40mdirect
C$ 374Air Transat
Find Deal
Fri, 19 Sep - Fri, 26 Sep
United Airlines Logo
5:50 p.m. - 10:30 p.m.YOW-IAD
4h 40m1 stop
United Airlines Logo
8:16 a.m. - 9:58 a.m.IAD-YOW
1h 42mdirect
C$ 381United Airlines
Find Deal
Sat, 13 Sep - Sun, 14 Sep
United Airlines Logo
6:05 a.m. - 7:42 a.m.YOW-EWR
1h 37mdirect
United Airlines Logo
9:00 p.m. - 9:58 a.m.EWR-YOW
12h 58m1 stop
C$ 381United Airlines
Find Deal
Fri, 10 Oct - Mon, 13 Oct

WestJet flights from Ottawa to United States

Our best WestJet deals on Ottawa to United States flight tickets
WestJet
24 Sep
YOW5:55 a.m.Ottawa
8h 44m
1 stop
LAS11:39 a.m.Las Vegas Harry Reid Intl
28 Sep
LAS10:00 a.m.Las Vegas Harry Reid Intl
11h 40m
2 stops
YOW12:40 a.m.Ottawa
C$ 362
Find similar
WestJet
28 Sep
YOW7:15 p.m.Ottawa
20h 17m
2 stops
LAS12:32 p.m.Las Vegas Harry Reid Intl
2 Oct
LAS6:20 p.m.Las Vegas Harry Reid Intl
9h 25m
1 stop
YOW6:45 a.m.Ottawa
C$ 365
Find similar
WestJet
24 Sep
YOW12:20 p.m.Ottawa
11h 01m
2 stops
LAS8:21 p.m.Las Vegas Harry Reid Intl
31 Oct
LAS1:10 p.m.Las Vegas Harry Reid Intl
8h 32m
1 stop
YOW12:42 a.m.Ottawa
C$ 367
Find similar

Porter Airlines flights from Ottawa to United States

Our best Porter Airlines deals on Ottawa to United States flight tickets
Porter Airlines
6 Sep
YOW4:25 p.m.Ottawa
3h 16m
MCO7:41 p.m.Orlando
14 Sep
MCO1:45 p.m.Orlando
3h 12m
YOW4:57 p.m.Ottawa
C$ 312
Find similar
Porter Airlines
3 Oct
YOW7:00 a.m.Ottawa
5h 42m
1 stop
MCO12:42 p.m.Orlando
7 Oct
MCO1:40 p.m.Orlando
7h 20m
1 stop
YOW9:00 p.m.Ottawa
C$ 314
Find similar
Porter Airlines
3 Oct
YOW4:25 p.m.Ottawa
3h 16m
MCO7:41 p.m.Orlando
7 Oct
MCO1:40 p.m.Orlando
7h 20m
1 stop
YOW9:00 p.m.Ottawa
C$ 317
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to United States 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 96,600 searches. Data last updated 21 August 2025.
Use the filters below to find and compare flights from Ottawa to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Sat 6/9

4:25 p.m.-7:41 p.m.

Nonstop3h 16m

Orlando

Sun 14/9

1:45 p.m.-4:57 p.m.

Nonstop3h 12m

C$ 312

OttawaOrlando

YOW - MCO

YOWMCO

Ottawa

Fri 3/10

7:00 a.m.-12:42 p.m.

1 stop5h 42m

Orlando

Tue 7/10

1:40 p.m.-9:00 p.m.

1 stop7h 20m

C$ 314

OttawaFort Lauderdale

YOW - FLL

YOWFLL

Ottawa

Tue 23/9

6:00 a.m.-11:45 a.m.

1 stop5h 45m

Fort Lauderdale

Wed 8/10

8:00 a.m.-3:04 p.m.

1 stop7h 04m

C$ 331

OttawaNew York

YOW - JFK

YOWJFK

Ottawa

Sun 5/10

5:15 a.m.-9:47 a.m.

1 stop4h 32m

New York John F Kennedy Intl

Sun 12/10

9:00 a.m.-1:51 p.m.

1 stop4h 51m

C$ 335

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 24/9

5:55 a.m.-11:39 a.m.

1 stop8h 44m

Las Vegas Harry Reid Intl

Sun 28/9

10:00 a.m.-12:40 a.m.

2 stops11h 40m

C$ 362

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 28/9

7:15 p.m.-12:32 p.m.

2 stops20h 17m

Las Vegas Harry Reid Intl

Thu 2/10

6:20 p.m.-6:45 a.m.

1 stop9h 25m

C$ 365

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Thu 11/9

10:50 a.m.-12:30 p.m.

Nonstop1h 40m

Newark

Mon 15/9

6:25 p.m.-8:05 p.m.

Nonstop1h 40m

C$ 372

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 19/9

4:05 p.m.-5:40 p.m.

Nonstop1h 35m

Newark

Fri 26/9

6:25 p.m.-8:05 p.m.

Nonstop1h 40m

C$ 374

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 13/9

5:50 p.m.-10:30 p.m.

1 stop4h 40m

Washington, D.C. Dulles Intl

Sun 14/9

8:16 a.m.-9:58 a.m.

Nonstop1h 42m

C$ 381

OttawaNewark

YOW - EWR

YOWEWR

Ottawa

Fri 10/10

6:05 a.m.-7:42 a.m.

Nonstop1h 37m

Newark

Mon 13/10

9:00 p.m.-9:58 a.m.

1 stop12h 58m

C$ 381

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 the United States from

How to get the cheapest flight ticket from Ottawa to United States

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 month to fly to United States?

The month of July is, on average, the cheapest month to fly to United States from Ottawa, with most prices found around C$ 350. If you don’t want to visit United States in July, then you should wait until June to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 358.

What is the cheapest day to depart on your flight to United States?

On average, the least expensive day to fly to United States from Ottawa is on a Monday. momondo users have found tickets for Monday departures for as low as C$ 358. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to United States on Saturday is C$ 456.

What is the cheapest time of day to depart on your flight to United States?

Our most recent data shows that the best time of day to fly to United States is in the evening. Flights from Ottawa to United States during this time can be as low as C$ 220. Flights to United States are more costly in the morning, with an average ticket price of C$ 419. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ottawa to United States flight route?

Fly from Ottawa to Las Vegas Harry Reid Intl for the best Ottawa - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around C$ 390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Ottawa for as low as C$ 353 on momondo.

What cabin class options are available on Ottawa to United States flights?

There are 4 cabin classes available to choose from on Ottawa to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ottawa to United States flights?

You could potentially save up to 4% on your flight if you consider stops on a Ottawa to United States flight.

Cheap Ottawa to United States flight deals and tips

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

Best price found

C$ 197

Fastest flight time

1h 15m

Direct flights

Every day

Airports in United States

2 airports
The best one-way flight to United States from Ottawa in the past 72 hours is C$ 197. The best round-trip flight deal from Ottawa to United States found on momondo in the last 72 hours is C$ 314.
The fastest flight from Ottawa to United States takes 1h 15m
Direct flights go from Ottawa to United States every day.
There are 2 airports near United States: Newark (EWR), Boston Logan Intl (BOS)
Search flight deals

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

    Prices for flights from Ottawa Airport to United States were last updated today.

  • How many operators does momondo search for flights from Ottawa Airport to United States?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to United States.

  • What documentation or ID do you need to fly to United States?

    The required travel and health documents for your United States 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 United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ottawa to United States?

Best airlines flying from Ottawa to United States

Compare and see reviews for airlines that fly from Ottawa to United States with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 215Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 232Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
WestJetPriceFrom C$ 244Free CancellationRating
7.2
3,044 reviews
Search WestJet flights
Porter AirlinesPriceFrom C$ 265Free CancellationRating
7.9
341 reviews
Search Porter Airlines flights
Air TransatPriceFrom C$ 284Free CancellationRating
7.7
429 reviews
Search Air Transat flights
APG AirlinesPriceFrom C$ 556Free CancellationRating
0.0
0 reviews
Search APG Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United States from Ottawa.

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

momondo does allow users to show only those flights to United States from Ottawa which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ottawa to United States?

Once all potential Ottawa to United States flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to United States from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your United States trip

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