Cheap flights from Ottawa to Portsmouth from C$ 519
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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ottawa to Portsmouth
Keep the following information in mind while searching for Ottawa to Portsmouth flight deals. Data was last updated 3 julio 2025.
Round-trip from | C$ 1,686 |
---|---|
One-way from | C$ 519 |
Popular in | December |
Cheapest in | February |
Average price | C$ 1,089 |
Find flight deals from Ottawa to Portsmouth
Cheapest flights from Ottawa to PortsmouthExplore the most affordable flight options available from Ottawa to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 julio 2025.
Explore the most affordable flight options available from Ottawa to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 julio 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Ottawa to Portsmouth 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 3 julio 2025.
Use the filters below to find and compare flights from Ottawa to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OttawaSouthampton
YOW - SOU
YOWSOU
Ottawa
dom. 24/8
8:55 p.m.-7:30 p.m.
2 stops41h 35m
Southampton Eastleigh
sáb. 6/9
9:40 a.m.-3:04 p.m.
2 stops34h 24m
OttawaSouthampton
YOW - SOU
YOWSOU
Ottawa
sáb. 9/8
5:15 p.m.-5:00 p.m.
2 stops18h 45m
Southampton Eastleigh
dom. 17/8
5:35 p.m.-3:05 p.m.
2 stops26h 30m
OttawaSouthampton
YOW - SOU
YOWSOU
Ottawa
dom. 17/8
5:55 a.m.-8:40 a.m.
3 stops45h 45m
Best time to book a flight from Ottawa to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Ottawa with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ottawa to Portsmouth
What is the cheapest month to book a flight from Ottawa to Portsmouth?
Currently, January is the cheapest month in which you can book a flight from Ottawa to Portsmouth (average of C$ 560). Flying from Ottawa to Portsmouth in July is currently the most expensive (average of C$ 857). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from YOW to P0R?
Find hourly flight availability from Ottawa to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 julio 2025.
When flying from Ottawa to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Portsmouth
Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated 3 julio 2025.
Read reviews from past customers who have flown KLM from Ottawa to Portsmouth. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Related info for your journey
Find useful and relevant information for your journey from Ottawa to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Ottawa to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Ottawa to Portsmouth
Discover the top 8 airlines that operate flights from Ottawa to Portsmouth. 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 3 julio 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ottawa to Portsmouth?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Portsmouth from Ottawa today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Ottawa to Portsmouth?
Cheapflights helps you find that perfect flight to Portsmouth from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Ottawa to Portsmouth with no change fees?
Certainly. Search results for flights to Portsmouth from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Ottawa to Portsmouth become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!