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Cheap flights from Ottawa to Porto from C$ 452

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — OPO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap 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 11 September 2025.

Round-trip from

C$ 891

One-way from

C$ 452

Popular in

July

Cheapest in

April

Average price

C$ 1,099
Air Canada
  • Air Canada
  • 29/9-22/10
  • 4 total stops
  • 44h 55m total
  • Ottawa to Porto
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25/10
  • 25/10
  • 3 total stops
  • 41h 25m total
  • Ottawa to Porto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 202 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 September 2025
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Find flight deals from Ottawa to Porto

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 11 September 2025.

Mon 29/910:30 a.m.YOW - OPO
2 stops18h 05mAir Canada
Wed 22/1011:10 a.m.OPO - YOW
2 stops26h 50mAir Canada
Deal found 11/9C$ 891
Mon 29/98:30 a.m.YOW - OPO
2 stops20h 05mAir Canada
Tue 21/106:00 a.m.OPO - YOW
2 stops21h 04mAir Canada
Deal found 11/9C$ 902
Mon 29/910:30 a.m.YOW - OPO
2 stops18h 05mAir Canada
Thu 23/106:00 a.m.OPO - YOW
2 stops23h 19mAir Canada
Deal found 11/9C$ 912
Thu 6/1112:05 p.m.YOW - OPO
2 stops16h 25mMultiple Airlines
Tue 18/1112:05 p.m.OPO - YOW
2 stops36h 17mMultiple Airlines
Deal found 11/9C$ 920
Thu 6/115:55 p.m.YOW - OPO
1 stop10h 35mAir Canada
Tue 18/116:00 a.m.OPO - YOW
2 stops17h 38mAir Canada
Deal found 10/9C$ 937
Sat 4/107:29 p.m.YOW - OPO
2 stops33h 16mUnited Airlines
Tue 21/106:00 a.m.OPO - YOW
2 stops20h 35mUnited Airlines
Deal found 11/9C$ 960
Sun 5/106:05 a.m.YOW - OPO
1 stop22h 40mMultiple Airlines
Wed 15/107:50 p.m.OPO - YOW
2 stops25h 35mMultiple Airlines
Deal found 11/9C$ 1,000
Wed 1/102:48 p.m.YOW - OPO
2 stops16h 17mAir Canada
Wed 22/1011:10 a.m.OPO - YOW
2 stops26h 50mAir Canada
Deal found 11/9C$ 1,010
Sat 4/107:29 p.m.YOW - OPO
2 stops33h 16mUnited Airlines
Wed 22/106:00 a.m.OPO - YOW
2 stops20h 35mUnited Airlines
Deal found 11/9C$ 1,016
Wed 1/102:45 p.m.YOW - OPO
2 stops16h 20mAir Canada
Tue 21/106:00 a.m.OPO - YOW
2 stops21h 04mAir Canada
Deal found 11/9C$ 1,021

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 11 September 2025.
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

Mon 29/9

10:30 a.m.-9:35 a.m.

2 stops18h 05m

Porto

Wed 22/10

11:10 a.m.-9:00 a.m.

2 stops26h 50m

C$ 891

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 29/9

6:40 p.m.-9:35 a.m.

1 stop9h 55m

Porto

Tue 21/10

6:00 a.m.-10:04 p.m.

2 stops21h 04m

C$ 902

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 6/11

5:55 p.m.-9:30 a.m.

1 stop10h 35m

Porto

Tue 18/11

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

2 stops17h 38m

C$ 937

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 28/2

8:00 p.m.-11:10 a.m.

2 stops34h 10m

Porto

Thu 19/3

6:00 a.m.-1:38 a.m.

2 stops23h 38m

C$ 1,002

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 28/2

10:35 a.m.-9:30 a.m.

2 stops17h 55m

Porto

Thu 19/3

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

1 stop13h 21m

C$ 1,013

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 4/10

7:29 p.m.-9:45 a.m.

2 stops33h 16m

Porto

Wed 22/10

6:00 a.m.-9:35 p.m.

2 stops20h 35m

C$ 1,016

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 9/3

2:50 p.m.-11:15 a.m.

2 stops16h 25m

Porto

Mon 23/3

4:15 p.m.-5:37 p.m.

2 stops29h 22m

C$ 1,038

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 9/3

5:57 p.m.-9:30 a.m.

1 stop11h 33m

Porto

Mon 23/3

6:15 a.m.-12:22 p.m.

2 stops34h 07m

C$ 1,043

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 4/10

7:29 p.m.-9:45 a.m.

2 stops33h 16m

Porto

Mon 20/10

6:00 a.m.-9:58 a.m.

2 stops32h 58m

C$ 1,077

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 25/10

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

3 stops41h 25m

C$ 452

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 13 results
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, January is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 483). Flying from Ottawa to Porto in July is currently the most expensive (average of C$ 792). 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 OPO?

Find hourly flight availability from Ottawa to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

One of the essential ways to save on airfare from Ottawa to Porto is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 20% on airfare.

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 11 September 2025.
Check out reviews from past customers who have flown with Porter Airlines,KLM, andAir Transat 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
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
KLM
7.8
Good
1,385 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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?

    Air Canada can get you from Ottawa to Porto in just under 18h 05m. Your travel time can differ by up to . There are 5279 km between Ottawa and Porto.

  • 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$ 856 on this airline. Additional options worth looking into are Porter Airlines and Air Transat, starting at C$ 882 and C$ 901 round-trip. You may be able to fly from Ottawa to Porto for 26% 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, January is the cheapest month in which you can book a flight from Ottawa to Porto (average of C$ 483). Flying from Ottawa to Porto in July is currently the most expensive (average of C$ 792). 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
Esposende

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Top 4 airlines flying from Ottawa to Porto

Discover the top 4 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 856AverageC$ 1,095FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 882AverageC$ 1,132FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 901AverageC$ 968FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
KLMCheapestC$ 959AverageC$ 1,520FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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