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C$ 612+ Cheap flights to Portsmouth

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 27 January 2026.

Sun 22/25:50 p.m.
YYZ
-
SOU
1 stop9h 30m
Delta
Wed 4/35:35 p.m.
SOU
-
YYZ
1 stop27h 05m
Delta
Deal found 24/1C$ 827
Mon 20/44:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Sat 9/55:20 p.m.
SOU
-
YYZ
1 stop25h 00m
Delta
Deal found 25/1C$ 848
Sun 22/25:50 p.m.
YYZ
-
SOU
1 stop9h 30m
Delta
Thu 5/36:05 p.m.
SOU
-
YYZ
2 stops33h 49m
Delta
Deal found 24/1C$ 867
Thu 5/25:50 p.m.
YYZ
-
SOU
1 stop9h 35m
Delta
Sun 15/39:30 a.m.
SOU
-
YYZ
1 stop11h 10m
Delta
Deal found 26/1C$ 887
Thu 29/112:07 p.m.
YYZ
-
SOU
2 stops15h 18m
Delta
Thu 5/29:00 a.m.
SOU
-
YYZ
2 stops15h 08m
Delta
Deal found 26/1C$ 900
Thu 29/19:15 p.m.
YYZ
-
SOU
1 stop30h 30m
KLM
Thu 5/29:00 a.m.
SOU
-
YYZ
1 stop11h 40m
KLM
Deal found 26/1C$ 901
Thu 7/54:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Mon 18/55:20 p.m.
SOU
-
YYZ
2 stops34h 37m
Delta
Deal found 25/1C$ 912
Thu 7/54:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Tue 19/55:20 p.m.
SOU
-
YYZ
1 stop25h 00m
Delta
Deal found 25/1C$ 932
Thu 29/19:15 p.m.
YYZ
-
SOU
1 stop30h 30m
KLM
Fri 6/25:35 p.m.
SOU
-
YYZ
2 stops27h 37m
KLM
Deal found 26/1C$ 941
Wed 6/512:16 p.m.
YYZ
-
SOU
2 stops15h 19m
Delta
Mon 18/55:20 p.m.
SOU
-
YYZ
2 stops34h 37m
Delta
Deal found 25/1C$ 945
Thu 12/39:30 a.m.
YTZ
-
SOU
3 stops27h 40m
Multiple Airlines
Thu 19/36:05 p.m.
SOU
-
YTZ
3 stops31h 45m
Multiple Airlines
Deal found 26/1C$ 1,555
Sun 7/69:30 a.m.
YTZ
-
SOU
2 stops29h 00m
Multiple Airlines
Sun 21/68:00 p.m.
SOU
-
YTZ
2 stops28h 51m
Multiple Airlines
Deal found 25/1C$ 1,924

Find flight deals to Portsmouth

Find the latest flights to Portsmouth in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 27 January 2026.

Round-trip from

C$ 701

One-way from

C$ 612

Popular in

December

Cheapest in

February

Average price

C$ 749
Air Transat
  • Air Transat
  • 8/2-28/2
  • Nonstop
  • 15h 30m total
  • Toronto to London
Search Deals
13/3
  • 13/3
  • 2 total stops
  • 19h 50m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 27 January 2026.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 22/2

9:15 p.m.-5:05 p.m.

1 stop14h 50m

Southampton Eastleigh

Thu 5/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 24/2

9:15 p.m.-5:00 p.m.

1 stop14h 45m

Southampton Eastleigh

Wed 4/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 22/2

9:15 p.m.-5:05 p.m.

1 stop14h 50m

Southampton Eastleigh

Tue 3/3

5:35 p.m.-3:40 p.m.

1 stop27h 05m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 22/2

9:15 p.m.-8:20 a.m.

1 stop30h 05m

Southampton Eastleigh

Mon 2/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 24/2

9:15 p.m.-5:00 p.m.

1 stop14h 45m

Southampton Eastleigh

Thu 5/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 23/2

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Thu 5/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 25/2

6:00 a.m.-8:20 a.m.

2 stops21h 20m

Southampton Eastleigh

Tue 3/3

5:35 p.m.-3:40 p.m.

1 stop27h 05m

C$ 867

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 22/2

12:11 p.m.-8:20 a.m.

2 stops15h 09m

Southampton Eastleigh

Sun 1/3

5:45 p.m.-3:40 p.m.

1 stop26h 55m

C$ 867

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 24/2

9:15 p.m.-5:00 p.m.

1 stop14h 45m

Southampton Eastleigh

Tue 3/3

5:35 p.m.-5:18 p.m.

2 stops28h 43m

C$ 867

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 21/2

6:00 a.m.-8:50 a.m.

2 stops21h 50m

Southampton Eastleigh

Thu 5/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 867

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 23 results
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2
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Best time to book a flight to Portsmouth

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

How long is the flight to Portsmouth?

On average, a flight from Toronto to Portsmouth takes 18 hours 37 minutes. Flights to Portsmouth from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Portsmouth

The most flights from Toronto to Portsmouth are scheduled on a Monday (30 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (17 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airlines flying from Toronto to Portsmouth are Aer Lingus and KLM.

KLM
KLM
From C$ 1,027
Aer Lingus
Aer Lingus
From C$ 1,016

What are the cheapest airlines that fly to Portsmouth?

The cheapest airlines flying from Toronto to Portsmouth are Aer Lingus and KLM.

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 27 January 2026.
See what other customers who have flown with KLM and Aer Lingus to the United Kingdom have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,443 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,442 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, WestJet is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a round-trip flight to Portsmouth?

    A round-trip flight to Portsmouth will typically cost around C$ 156, however they can be found for as little as C$ 156.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Toronto offers the quickest one-way flight (9 hours 35 minutes).

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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