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Cheap flights from Ottawa to Porto from C$ 542

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — OPO
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 929

One-way from

C$ 542

Popular in

July

Cheapest in

April

Average price

C$ 1,477
Air Transat
  • Air Transat
  • 1/9-22/9
  • 2 total stops
  • 29h 41m total
  • Ottawa to Porto
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11/9
  • 11/9
  • 3 total stops
  • 35h 45m total
  • Ottawa to Porto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 197 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 July 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 29 July 2025.

Mon 1/95:05 p.m.YOW - OPO
1 stop13h 50mAir Transat
Mon 22/91:30 p.m.OPO - YOW
1 stop15h 51mAir Transat
Deal found 28/7C$ 929
Thu 6/1111:10 a.m.YOW - OPO
2 stops17h 20mUnited Airlines
Thu 13/1112:35 p.m.OPO - YOW
2 stops31h 48mUnited Airlines
Deal found 27/7C$ 941
Sat 20/99:55 p.m.YOW - OPO
2 stops30h 50mMultiple Airlines
Wed 1/104:55 p.m.OPO - YOW
2 stops25h 56mMultiple Airlines
Deal found 27/7C$ 975
Thu 6/113:10 p.m.YOW - OPO
1 stop13h 20mAir Canada
Thu 13/1112:35 p.m.OPO - YOW
1 stop14h 21mAir Canada
Deal found 27/7C$ 985
Fri 29/85:05 p.m.YOW - OPO
2 stops32h 40mPorter Airlines
Tue 2/98:25 a.m.OPO - YOW
2 stops14h 59mPorter Airlines
Deal found 29/7C$ 1,552
Thu 6/114:10 p.m.YOW - OPO
2 stops19h 20mSWISS
Thu 13/112:20 p.m.OPO - YOW
3 stops32h 17mSWISS
Deal found 27/7C$ 1,590

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 29 July 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 1/9

5:05 p.m.-11:55 a.m.

1 stop13h 50m

Porto

Mon 22/9

1:30 p.m.-12:21 a.m.

1 stop15h 51m

C$ 929

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 6/11

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

2 stops17h 20m

Porto

Thu 13/11

12:35 p.m.-3:23 p.m.

2 stops31h 48m

C$ 941

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Sat 20/9

9:55 p.m.-9:45 a.m.

2 stops30h 50m

Porto

Wed 1/10

4:55 p.m.-1:51 p.m.

2 stops25h 56m

C$ 975

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 6/11

3:10 p.m.-9:30 a.m.

1 stop13h 20m

Porto

Thu 13/11

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

1 stop14h 21m

C$ 985

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Fri 29/8

5:05 p.m.-6:45 a.m.

2 stops32h 40m

Porto

Tue 2/9

8:25 a.m.-6:24 p.m.

2 stops14h 59m

C$ 1,552

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 6/11

4:10 p.m.-4:30 p.m.

2 stops19h 20m

Porto

Thu 13/11

2:20 p.m.-5:37 p.m.

3 stops32h 17m

C$ 1,590

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Thu 11/9

4:05 p.m.-8:50 a.m.

3 stops35h 45m

C$ 542

OttawaPorto

YOW - OPO

YOWOPO

Ottawa

Mon 29/9

8:35 a.m.-11:45 a.m.

1 stop22h 10m

C$ 630

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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$ 789). 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 29 July 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.

What’s the top layover airport for flights from Ottawa to Porto?

Share of one-stop round-trip flights from Ottawa to Porto chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 75% of one-stop itineraries from Ottawa to Porto on Cheapflights.

What’s the cheapest layover airport for flights from Ottawa to Porto?

Average round-trip fare for 1-stop flights from Ottawa to Porto, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of C$ 837.

What’s the fastest layover option from Ottawa to Porto?

Shortest average travel time for 1-stop one-way flights from Ottawa to Porto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 9h 06m.

Which airport typically offers the quickest layover for flights from Ottawa to Porto?

Average layover duration for 1-stop one-way flights from Ottawa to Porto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 2h 28m.

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 29 July 2025.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andSWISS 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
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
317 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
SWISS
7.5
Good
1,683 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,896 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,826 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Food

7.6

Comfort

8.0

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

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

    Our cheapest airline available from Ottawa to Porto is Air Transat. Our recent data shows that you can find tickets from as low as C$ 929 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at C$ 941 and C$ 985 round-trip. You may be able to fly from Ottawa to Porto for 20% 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$ 789). 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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 847AverageC$ 1,098FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 892AverageC$ 959FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 893AverageC$ 1,088FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
KLMCheapestC$ 949AverageC$ 1,332FlexibilityNo cancel feeOn-time75%
Search KLM 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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