$125 Find Cheap Flights from Ottawa to the United States - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to the United States departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Ottawa to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
Newarknonstop$203
Orlando
Orlandononstop$258
Los Angeles
Los Angeles1 stop$351
Las Vegas
Las Vegas2 stops$272
Chicago
Chicago1 stop$378
San Francisco
San Francisco2 stops$330
Miami
Miami1 stop$361
Boston
Bostonnonstop$228
Fort Lauderdale
Fort Lauderdalenonstop$250
Denver
Denver1 stop$384
Seattle
Seattle1 stop$362
Atlanta
Atlanta1 stop$365
Dallas
Dallas2 stops$415
Tampa
Tampa1 stop$313
Houston
Houston2 stops$428
San Diego
San Diego2 stops$372
Honolulu
Honolulu2 stops$465
Philadelphia
Philadelphia2 stops$481
New York
Newarknonstop$203
Orlando
Orlandononstop$258
Los Angeles
Los Angeles1 stop$351
Las Vegas
Las Vegas2 stops$272
Chicago
Chicago1 stop$378
San Francisco
San Francisco2 stops$330
Miami
Miami1 stop$361
Boston
Bostonnonstop$228
Fort Lauderdale
Fort Lauderdalenonstop$250
Denver
Denver1 stop$384
Seattle
Seattle1 stop$362
Atlanta
Atlanta1 stop$365
Dallas
Dallas2 stops$415
Tampa
Tampa1 stop$313
Houston
Houston2 stops$428
San Diego
San Diego2 stops$372
Honolulu
Honolulu2 stops$465
Philadelphia
Philadelphia2 stops$481

Book Cheap Ottawa to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to the United States

Thu, Aug 13 - Mon, Aug 17
Porter Airlines Logo
2:10 pm - 3:45 pm
YOW
-
EWR
1h 35mnonstop
Porter Airlines Logo
10:40 am - 12:25 pm
EWR
-
YOW
1h 45mnonstop
$203Porter Airlines
Thu, Aug 20 - Mon, Aug 24
Porter Airlines Logo
9:05 am - 10:40 am
YOW
-
EWR
1h 35mnonstop
Porter Airlines Logo
10:40 am - 12:25 pm
EWR
-
YOW
1h 45mnonstop
$205Porter Airlines
Thu, Jul 23 - Tue, Jul 28
Air Canada Logo
12:15 pm - 3:47 pm
YOW
-
LGA
3h 32m
1 stop
Air Canada Logo
10:00 am - 4:32 pm
LGA
-
YOW
6h 32m
1 stop
$262Air Canada
Thu, Sep 3 - Wed, Sep 9
Air Canada Logo
12:15 pm - 3:47 pm
YOW
-
LGA
3h 32m
1 stop
Air Canada Logo
3:30 pm - 7:45 pm
LGA
-
YOW
4h 15m
1 stop
$266Air Canada
Fri, Jul 24 - Mon, Jul 27
United Airlines Logo
6:25 am - 4:43 pm
YOW
-
MCO
10h 18m
1 stop
United Airlines Logo
9:37 am - 2:17 pm
MCO
-
YOW
4h 40m
1 stop
$270United Airlines
Sun, Sep 20 - Fri, Sep 25
WestJet Logo
7:20 am - 3:45 pm
YOW
-
LAS
11h 25m
2 stops
WestJet Logo
6:10 pm - 5:35 am
LAS
-
YOW
8h 25m
1 stop
$272WestJet
Sat, Sep 26 - Wed, Sep 30
WestJet Logo
12:25 pm - 9:40 pm
YOW
-
LAS
12h 15m
2 stops
WestJet Logo
6:10 pm - 5:35 am
LAS
-
YOW
8h 25m
1 stop
$274WestJet
Fri, Jul 24 - Mon, Jul 27
Multiple Airlines Logo
6:25 am - 1:13 pm
YOW
-
MCO
6h 48m
1 stop
Multiple Airlines Logo
7:00 am - 1:10 pm
MCO
-
YOW
6h 10m
1 stop
$274Multiple Airlines
Tue, Jul 21 - Sat, Aug 1
United Airlines Logo
6:25 am - 10:15 pm
YOW
-
FLL
15h 50m
1 stop
United Airlines Logo
6:40 am - 4:38 pm
FLL
-
YOW
9h 58m
1 stop
$276United Airlines
Mon, Jul 27 - Sun, Aug 2
Multiple Airlines Logo
7:00 am - 12:30 pm
YOW
-
DFW
30h 30m
2 stops
Multiple Airlines Logo
1:53 pm - 2:55 pm
DFW
-
YOW
24h 02m
1 stop
$415Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to the United States flights

Get data-powered insights and trends into flights from Ottawa to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Ottawa to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Ottawa found in the last 5 days was to Boston, at $235 round-trip. The most popular route is from Ottawa (YOW) to Newark Airport (EWR), and the cheapest round-trip airline ticket found on this route in the last 5 days was $238.

What is the cheapest time of day to fly to the United States?

The average price for all round-trip flights from Ottawa to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost $438 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $471.

Can I save money by flying with a layover from Ottawa to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $485, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Ottawa to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ottawa to the United States is January, when tickets cost $318 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $472 and $454 respectively.

Good to know

Low seasonJune
Cheapest flight$125
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Ottawa to Newark Liberty Airport

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Ottawa to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ottawa to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ottawa to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ottawa to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Ottawa to the following destinations at these prices or less: Newark $199 one-way - $388 round-trip; Washington, D.C. $280 one-way - $477 round-trip; Chicago $288 one-way - $545 round-trip

Reviews of the top 5 airlines serving from Ottawa to the United States

 
Need help choosing which airline to fly with from Ottawa to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Porter AirlinesOverall score based on 442 reviews
7.5Food
7.9Comfort
8.6Crew
6.9Entertainment
8.2Boarding
Airline reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

4.0 OkayJeff, Jul 2026
YYZ - SFO
Read more Porter Airlines reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

I flew with Porter yesterday and overall had a positive experience. The flight was delayed, but the airline did a good job keeping passengers informed with frequent updates throughout the process. My biggest challenge was actually in Terminal 3, where the speaker system wasn’t very clear. It was often difficult to hear the announcements, which made it harder to follow updates at the gate. On board, the experience improved significantly. The aircraft felt very new and well maintained, and the seats were surprisingly comfortable for a short-haul flight. One of the flight attendants seemed a little disengaged, but the other was excellent—friendly, professional, and a pleasure to interact with. Despite the delay, the comfortable aircraft, clear communication from Porter, and positive onboard service made for a good overall experience.

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

Organization and the adjusted times but the snacks could be of a bigger portion

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Due to mechanical problems it was delayed causing problems the actual flight. Was fune

Delayed by 2.5 hours. This happened previously on my flight from YOW to YVR on Dec. 26.2023. This is a terrible airline. The reason was there was lack of ground crew. This is a known event. AVOID PORTER AIRLINES IF YOU CAN. There is a reason half the plane was empty.

Flight Ottawa to Toronto canceled and no crew was available to direct me on what to do. I opened a file and I wait to be compensated.

Porter, like most airlines, need to improve their baggage policies. In reality, there are no longer 'cheap flights' because passengers pay exorbitant baggage fees.

Very kind crew. Vegetarian food better than usual. Prompt take off. Entertainment worked well. Could always do with more room!

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

Great crew and entertaining Captain. Seats were not what we had expected based on my booking but things worked out in the end. Of course, like all airlines these days not enough leg or elbow room.

The entertainment system was down; food by purchase only; several people did not receive their luggage. No one answers at the local office or online about the luggage.

This has been the worst experience I’ve ever had. Basically, I lost my round-trip tickets because one of my last names was missing, and you didn’t allow me to correct it. I had to purchase a full ticket again. Once I get home, I will start legal proceedings against you.

It’s ok just the boarding point is far too far

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Flight delayed any hour and couple of big gate changes

We were unable to land in Liberia. It was not the airline’s fault, but we had to be diverted to SJO.

I sat in the club. The seeds were fantastic. The meal was great and Entertainment was good. The crew was fantastic. I recommend it to everybody.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

My connecting gate in .Chicago was across the aisle from my arriving gate. Otherwise I would not have made my connection. So that was very fortunate.

My flight was delayed by a whole day, so I lost a day of my vacation.

How would you rate my experience when I was stuck in YOW without being offered a cup of water by the airline?

Experience was good, the wifi hook up is somewhat tough

I will not be flying with westjet again. I was uncomfortable in my seat. The position made my back hurt so bad. My wife was able to fit the seatbelt around her with out an extension but was unable to put the tray table down or fit in the seat for that matter. Our bag was smashed and I spent two hours trying to fill out the application for a damaged bag before I gave up. The 80 photos I took would not work and nothing telling me the format to upload them as.. I made the mistake of unpacking the bag before taking photos so no claim for me. Next trip to Canada I will have to use air Canada.

Airplane is too small. Crew, especially the flight attendant who looked after our area, was not at all friendly and a touch authoratative. She may have been the most gruff flight attendant i've come across in 40 years of business travel

I selected "carry-on" for a round trip on Kayak, but my return flight on WestJet did not include a carry-on and they would not allow me to add one. My only option was to add a "checked bag" which I had to wait for on the luggage carousel after landing. Not a good experience.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

Not a tonne of food for purchase items for early morning.

Long delay die to pet mix up. Also bags took forever to get to carousel

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

Staff were very friendly. Plane left on time and arrived on time.

The Flight Attendant was particularly helpful to my wife, who was having a bad day.

It is air Canada so leaving 20 minutes late is very acceptable

One United employee a little impatient, also on flight WiFi was out for some time. I was happy to receive a complimentary alcoholic beverage for volunteering to check my carry on bag.

Everything was great, staff, planes, at the gate. All around everything was a pleasure flying .

I COULD NOT GET ON THE FLIGHT BECAUSE THE AIR CANADA CHECK-IN STAFF COULD NOT CHECK ME IN NEITHER COULD THEY DIRECT ME TO THE ALTERNATIVE CHECK-IN AIRLINE I DIDN'T FLY AND HAD TO REBOOK ANOTHER AIRLINE, PORTER FOR THE FOLLOWING DAY. I NEED MY REFUND FOR THE RETURN LEG

When a person pays 500 $ for one way ticket that person should have better seat not the seat before the bathrooms.🤔🤨

Seating is very tight. We were delayed 90 minutes to board, because the flight crew were late

Everything you need to know for your flight from Ottawa to the United States

Information on your arrival and departure airports