C$ 368+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
9 Aug — 16 Aug1
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 10 July 2026.

Tue 22/98:45 p.m.
YYZ
-
SOU
2 stops15h 05m
Multiple Airlines
Sun 4/105:20 p.m.
SOU
-
YYZ
2 stops30h 50m
Multiple Airlines
Deal found 8/7C$ 786
Fri 2/109:55 p.m.
YYZ
-
SOU
1 stop29h 50m
Delta
Sat 10/105:20 p.m.
SOU
-
YYZ
1 stop31h 35m
Delta
Deal found 8/7C$ 961
Fri 2/108:45 p.m.
YYZ
-
SOU
2 stops15h 05m
Multiple Airlines
Sat 10/109:20 a.m.
SOU
-
YYZ
2 stops17h 45m
Multiple Airlines
Deal found 8/7C$ 967
Sat 3/104:45 p.m.
YYZ
-
SOU
1 stop11h 00m
KLM
Sat 31/105:30 p.m.
SOU
-
YYZ
1 stop27h 10m
KLM
Deal found 8/7C$ 1,035
Mon 7/94:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Sat 19/99:15 a.m.
SOU
-
YYZ
2 stops18h 57m
Delta
Deal found 8/7C$ 1,047
Thu 31/125:55 p.m.
YYZ
-
SOU
1 stop9h 15m
Delta
Wed 13/18:40 a.m.
SOU
-
YYZ
1 stop12h 00m
Delta
Deal found 5/7C$ 1,057
Tue 1/125:55 p.m.
YYZ
-
SOU
1 stop9h 15m
Delta
Tue 8/125:30 p.m.
SOU
-
YYZ
1 stop27h 10m
Delta
Deal found 8/7C$ 1,059
Tue 4/86:30 p.m.
YTZ
-
SOU
3 stops33h 10m
Multiple Airlines
Tue 11/88:00 p.m.
SOU
-
YTZ
3 stops30h 31m
Multiple Airlines
Deal found 7/7C$ 1,421
Fri 2/106:30 p.m.
YTZ
-
SOU
3 stops20h 00m
Multiple Airlines
Sat 10/108:00 p.m.
SOU
-
YTZ
3 stops26h 50m
Multiple Airlines
Deal found 8/7C$ 1,509

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 10 July 2026.

Round-trip from

C$ 767

One-way from

C$ 368

Popular in

July

Cheapest in

February

Average price

C$ 1,204
Air Transat
  • Air Transat
  • 9/10-16/10
  • 2 total stops
  • 28h 40m total
  • Toronto to London
Search Deals
4/8
  • 4/8
  • 2 total stops
  • 44h 05m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 10 July 2026.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 7/9

4:45 p.m.-8:35 a.m.

1 stop10h 50m

Southampton Eastleigh

Sat 19/9

9:15 a.m.-11:12 p.m.

2 stops18h 57m

C$ 1,047

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 30/12

5:55 p.m.-5:00 p.m.

1 stop18h 05m

Southampton Eastleigh

Wed 13/1

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

1 stop12h 00m

C$ 1,057
Quickest round-trip

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 9/8

5:35 p.m.-8:40 a.m.

1 stop10h 05m

Southampton Eastleigh

Sun 16/8

9:20 a.m.-3:50 p.m.

1 stop11h 30m

C$ 1,073

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 31/12

5:55 p.m.-5:00 p.m.

1 stop18h 05m

Southampton Eastleigh

Tue 12/1

5:30 p.m.-5:26 p.m.

2 stops28h 56m

C$ 1,097

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 30/12

5:55 p.m.-8:10 a.m.

1 stop9h 15m

Southampton Eastleigh

Sat 9/1

5:30 p.m.-7:15 p.m.

1 stop30h 45m

C$ 1,176

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 4/8

11:30 p.m.-8:45 a.m.

2 stops28h 15m

Southampton Eastleigh

Tue 11/8

9:15 a.m.-11:18 p.m.

2 stops19h 03m

C$ 1,292

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 30/12

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

2 stops14h 45m

Southampton Eastleigh

Sun 10/1

5:30 p.m.-4:04 p.m.

2 stops27h 34m

C$ 1,349

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Tue 4/8

6:30 p.m.-8:40 a.m.

3 stops33h 10m

Southampton Eastleigh

Tue 11/8

8:00 p.m.-9:31 p.m.

3 stops30h 31m

C$ 1,421

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Fri 2/10

6:30 p.m.-7:30 p.m.

3 stops20h 00m

Southampton Eastleigh

Sat 10/10

8:00 p.m.-5:50 p.m.

3 stops26h 50m

C$ 1,509

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 2/1

5:55 p.m.-8:55 a.m.

1 stop10h 00m

Southampton Eastleigh

Sun 10/1

5:30 p.m.-3:40 p.m.

1 stop27h 10m

C$ 1,585

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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 14 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 Friday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (34 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.

Aer Lingus
Aer Lingus
From C$ 1,178
KLM
KLM
From C$ 1,062

What are the cheapest airlines that fly to Portsmouth?

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

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).

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$ 1,627, however they can be found for as little as C$ 124.

  • 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 15 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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