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Cheap flights from Ottawa to Porto from C$ 454

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — OPO
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Porto
Explore the most affordable flight options available from Ottawa to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Tue 1/92:15 p.m.
YOW
-
OPO
1 stop11h 30m
Air Transat
Tue 8/98:25 a.m.
OPO
-
YOW
1 stop14h 10m
Air Transat
Deal found 18/7C$ 717
Sun 23/87:00 a.m.
YOW
-
OPO
1 stop23h 45m
Air Transat
Tue 1/98:25 a.m.
OPO
-
YOW
1 stop14h 10m
Air Transat
Deal found 20/7C$ 727
Fri 9/108:55 p.m.
YOW
-
OPO
1 stop9h 50m
Air Transat
Sat 17/101:30 p.m.
OPO
-
YOW
1 stop30h 25m
Air Transat
Deal found 19/7C$ 731
Mon 14/94:00 p.m.
YOW
-
OPO
1 stop14h 45m
Porter Airlines
Tue 22/91:30 p.m.
OPO
-
YOW
1 stop15h 55m
Porter Airlines
Deal found 19/7C$ 733
Mon 7/97:00 a.m.
YOW
-
OPO
1 stop23h 45m
Air Transat
Tue 22/98:25 a.m.
OPO
-
YOW
1 stop14h 10m
Air Transat
Deal found 22/7C$ 734
Fri 11/98:55 p.m.
YOW
-
OPO
1 stop9h 50m
Air Transat
Tue 22/98:25 a.m.
OPO
-
YOW
1 stop14h 10m
Air Transat
Deal found 19/7C$ 737
Mon 14/94:00 p.m.
YOW
-
OPO
1 stop14h 45m
Porter Airlines
Thu 17/91:30 p.m.
OPO
-
YOW
1 stop15h 55m
Porter Airlines
Deal found 19/7C$ 744
Fri 11/96:00 a.m.
YOW
-
OPO
1 stop20h 10m
Air Canada
Wed 23/911:20 a.m.
OPO
-
YOW
1 stop14h 24m
Air Canada
Deal found 19/7C$ 753
Sat 26/99:55 a.m.
YOW
-
OPO
2 stops15h 55m
Multiple Airlines
Wed 7/1011:20 a.m.
OPO
-
YOW
1 stop15h 50m
Multiple Airlines
Deal found 22/7C$ 754
Tue 1/92:15 p.m.
YOW
-
OPO
1 stop11h 30m
Porter Airlines
Tue 8/98:25 a.m.
OPO
-
YOW
1 stop14h 10m
Porter Airlines
Deal found 20/7C$ 762
Sun 13/99:25 p.m.
YOW
-
OPO
1 stop28h 35m
Multiple Airlines
Thu 24/97:20 p.m.
OPO
-
YOW
2 stops26h 50m
Multiple Airlines
Deal found 21/7C$ 764
Fri 25/97:30 p.m.
YOW
-
OPO
1 stop30h 20m
Air Canada
Thu 8/1011:50 a.m.
OPO
-
YOW
2 stops30h 20m
Air Canada
Deal found 22/7C$ 765

Find flight deals from Ottawa to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Porto (OPO). 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 23 July 2026.

Round-trip from

C$ 717

One-way from

C$ 454

Popular in

December

Cheapest in

October

Average price

C$ 1,123
Air Transat
  • Air Transat
  • 1/9-8/9
  • 2 total stops
  • 25h 40m total
  • Ottawa to Porto
Search Deals
1/10
  • 1/10
  • 3 total stops
  • 46h 55m total
  • Ottawa to Porto
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Porto 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 23 July 2026.
Use the filters below to find and compare flights from Ottawa to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Fri 11/9

2:00 p.m.-7:10 a.m.

2 stops12h 10m

Porto

Wed 16/9

11:20 a.m.-10:10 p.m.

1 stop15h 50m

C$ 734

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 14/9

4:00 p.m.-11:45 a.m.

1 stop14h 45m

Porto

Thu 17/9

1:30 p.m.-12:25 a.m.

1 stop15h 55m

C$ 744

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 14/9

10:25 a.m.-6:55 a.m.

2 stops15h 30m

Porto

Fri 25/9

6:00 a.m.-4:38 p.m.

2 stops39h 38m

C$ 841

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sun 9/8

3:10 p.m.-9:45 a.m.

1 stop13h 35m

Porto

Mon 17/8

9:00 a.m.-9:11 a.m.

1 stop29h 11m

C$ 937

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sun 13/9

6:00 a.m.-6:55 a.m.

2 stops19h 55m

Porto

Thu 17/9

9:00 a.m.-9:11 a.m.

1 stop29h 11m

C$ 956

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 3/8

10:00 a.m.-6:55 a.m.

2 stops15h 55m

Porto

Fri 14/8

9:00 a.m.-11:54 p.m.

2 stops19h 54m

C$ 963

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 10/9

5:57 p.m.-6:50 a.m.

1 stop31h 53m

Porto

Fri 18/9

9:00 a.m.-9:11 a.m.

1 stop29h 11m

C$ 975

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Tue 11/8

2:00 p.m.-11:25 a.m.

2 stops16h 25m

Porto

Wed 19/8

8:00 p.m.-5:29 p.m.

2 stops26h 29m

C$ 1,068
Cheapest one-way

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 1/10

6:55 a.m.-9:15 p.m.

2 stops33h 20m

C$ 466

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 17/8

6:55 a.m.-9:20 p.m.

3 stops33h 25m

C$ 505

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/7

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Ottawa to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto

What is the cheapest month to book a flight from Ottawa to Porto?

Currently, October is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 926). Flying from Ottawa to Porto in December is currently the most expensive (average of C$ 1,399). 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.

How much does it cost to fly round-trip from Ottawa to Porto?

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated 23 July 2026.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andAir Canada from Ottawa to Porto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
448 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Overall

8.0

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
448 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Overall

8.0

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Transat
7.8
Good
566 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Overall

8.0

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,371 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Overall

8.0

Food

7.5

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Porto. 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 Porto?

    Porter Airlines and United Airlines can get you from Ottawa to Porto in just under 14h 45m. Your travel time can differ by up to 45m. There are 5279 km between Ottawa and Porto. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Ottawa to Porto round-trip?

    Our cheapest airline available from Ottawa to Porto is Air Canada. Our recent data shows that you can find tickets from as low as C$ 842 on this airline. Additional options worth looking into are Air Transat and Porter Airlines, starting at C$ 900 and C$ 907 round-trip. You may be able to fly from Ottawa to Porto for 22% less than the average price by searching for these airlines.

  • Can I find deals for flights from Ottawa to Porto that include hotel bookings?

    Yes. In addition to deals on Ottawa to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Porto.

  • Can I find deals for business class flights from Ottawa to Porto?

    Yes. Cheapflights offers flight deals from Ottawa to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to Porto?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 926). Flying from Ottawa to Porto in December is currently the most expensive (average of C$ 1,399). 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.

See more FAQs

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.

Top 3 airlines flying from Ottawa to Porto

Discover the top 3 airlines that operate flights from Ottawa to Porto. 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 842AverageC$ 1,042FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 900AverageC$ 1,104FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 907AverageC$ 1,009FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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 Porto?

Cheapflights makes it easy to find Ottawa to Porto flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Porto?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto from Ottawa.

Can Cheapflights find flights from Ottawa to Porto with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to Porto, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ottawa to Porto become cheaper?

Not ready to book yet? You can track prices for flights from Ottawa to Porto on Cheapflights with our Price Alert feature and get notified when better prices are available.

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