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Cheap flights from Ottawa to Porto from C$ 675

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — OPO
26 Feb — 5 Mar1
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 27 January 2026.

Wed 25/26:00 a.m.
YOW
-
OPO
1 stop22h 30m
Air Canada
Mon 9/312:35 p.m.
OPO
-
YOW
1 stop13h 21m
Air Canada
Deal found 27/1C$ 824
Wed 25/26:20 a.m.
YOW
-
OPO
2 stops22h 10m
United Airlines
Mon 9/312:35 p.m.
OPO
-
YOW
1 stop13h 21m
United Airlines
Deal found 27/1C$ 826
Sat 21/22:05 p.m.
YOW
-
OPO
2 stops17h 45m
Air Canada
Thu 5/312:35 p.m.
OPO
-
YOW
1 stop14h 21m
Air Canada
Deal found 26/1C$ 828
Wed 18/26:20 p.m.
YOW
-
OPO
2 stops13h 55m
Air Canada
Wed 4/312:35 p.m.
OPO
-
YOW
1 stop14h 21m
Air Canada
Deal found 27/1C$ 830
Mon 23/26:00 a.m.
YOW
-
OPO
1 stop22h 30m
Air Canada
Thu 26/26:00 a.m.
OPO
-
YOW
2 stops39h 23m
Air Canada
Deal found 26/1C$ 849
Mon 23/211:10 a.m.
YOW
-
OPO
2 stops17h 20m
United Airlines
Thu 26/212:30 p.m.
OPO
-
YOW
2 stops37h 48m
United Airlines
Deal found 25/1C$ 878
Wed 25/211:20 a.m.
YOW
-
OPO
3 stops30h 10m
Multiple Airlines
Mon 9/39:55 p.m.
OPO
-
YOW
3 stops30h 44m
Multiple Airlines
Deal found 27/1C$ 900
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 27/1C$ 908
Sat 21/27:30 p.m.
YOW
-
OPO
2 stops38h 45m
United Airlines
Thu 5/36:00 a.m.
OPO
-
YOW
2 stops20h 18m
United Airlines
Deal found 26/1C$ 912
Wed 8/78:40 a.m.
YOW
-
OPO
1 stop22h 05m
Air Transat
Thu 23/71:30 p.m.
OPO
-
YOW
1 stop11h 30m
Air Transat
Deal found 27/1C$ 941

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 27 January 2026.

Round-trip from

C$ 797

One-way from

C$ 675

Popular in

December

Cheapest in

April

Average price

C$ 1,146
Lufthansa
  • Lufthansa
  • 22/2-1/3
  • 4 total stops
  • 52h 33m total
  • Ottawa to Porto
Search Deals
12/3
  • 12/3
  • 3 total stops
  • 36h 30m total
  • Ottawa to Porto
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 27 January 2026.
Use the filters below to find and compare flights from Ottawa to Porto that are best for you.

Fly from

Ottawa

Fly to

Porto

Route

Depart

Return

Price

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Wed 25/2

6:20 a.m.-9:30 a.m.

2 stops22h 10m

Porto

Mon 9/3

12:35 p.m.-9:56 p.m.

1 stop13h 21m

C$ 826

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 21/2

2:05 p.m.-12:50 p.m.

2 stops17h 45m

Porto

Thu 5/3

12:35 p.m.-9:56 p.m.

1 stop14h 21m

C$ 828

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 23/2

11:10 a.m.-9:30 a.m.

2 stops17h 20m

Porto

Thu 26/2

12:30 p.m.-9:18 p.m.

2 stops37h 48m

C$ 878

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Wed 25/2

11:20 a.m.-10:30 p.m.

3 stops30h 10m

Porto

Mon 9/3

9:55 p.m.-12:39 a.m.

3 stops30h 44m

C$ 900

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Tue 5/5

5:55 p.m.-1:45 p.m.

2 stops14h 50m

Porto

Tue 12/5

8:40 a.m.-8:15 a.m.

2 stops28h 35m

C$ 949

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Tue 7/7

2:15 p.m.-6:45 a.m.

1 stop11h 30m

Porto

Thu 23/7

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

1 stop15h 55m

C$ 984

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Fri 29/5

11:15 a.m.-1:45 p.m.

2 stops21h 30m

Porto

Tue 9/6

11:15 a.m.-7:51 p.m.

2 stops13h 36m

C$ 984

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sun 5/7

2:00 p.m.-6:50 a.m.

2 stops11h 50m

Porto

Thu 23/7

12:15 p.m.-8:50 p.m.

1 stop13h 35m

C$ 993

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 12/3

3:35 p.m.-8:05 a.m.

3 stops36h 30m

C$ 675

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Fri 13/3

10:00 a.m.-7:05 a.m.

1 stop17h 05m

C$ 1,006

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 11 results
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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, February is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 422). Flying from Ottawa to Porto in December is currently the most expensive (average of C$ 946). 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 27 January 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
7.9
Good
412 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.7
Good
501 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,664 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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?

    United Airlines and Air Canada can get you from Ottawa to Porto in just under 17h 45m. Your travel time can differ by up to 4h 25m. 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$ 840 on this airline. Additional options worth looking into are Porter Airlines and Air Transat, starting at C$ 882 and C$ 891 round-trip. You may be able to fly from Ottawa to Porto for 19% 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, February is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 422). Flying from Ottawa to Porto in December is currently the most expensive (average of C$ 946). 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

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ottawa to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 840AverageC$ 975FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 882AverageC$ 1,065FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 891AverageC$ 1,073FlexibilityNo cancel feeOn-time50%
Search Air Transat 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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