C$ 318+ 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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
1 Sep — 8 Sep1
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 2 August 2026.

Wed 2/94:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Wed 9/95:20 p.m.
SOU
-
YYZ
1 stop25h 00m
Delta
Deal found 28/7C$ 953
Thu 5/115:45 p.m.
YYZ
-
SOU
1 stop9h 25m
Delta
Fri 13/118:40 a.m.
SOU
-
YYZ
1 stop15h 35m
Delta
Deal found 30/7C$ 954
Mon 30/1112:15 p.m.
YYZ
-
SOU
2 stops23h 45m
Delta
Thu 10/125:30 p.m.
SOU
-
YYZ
1 stop30h 45m
Delta
Deal found 29/7C$ 992
Mon 30/1112:15 p.m.
YYZ
-
SOU
2 stops23h 45m
Delta
Mon 14/125:30 p.m.
SOU
-
YYZ
2 stops28h 44m
Delta
Deal found 29/7C$ 1,026
Tue 15/99:55 p.m.
YYZ
-
SOU
1 stop13h 55m
Delta
Sat 19/99:15 a.m.
SOU
-
YYZ
2 stops18h 57m
Delta
Deal found 28/7C$ 1,101
Wed 16/97:00 a.m.
YTZ
-
SOU
3 stops28h 20m
Multiple Airlines
Wed 23/98:00 p.m.
SOU
-
YTZ
3 stops29h 11m
Multiple Airlines
Deal found 2/8C$ 1,425

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 2 August 2026.

Round-trip from

C$ 759

One-way from

C$ 318

Popular in

December

Cheapest in

February

Average price

C$ 1,160
Air Transat
  • Air Transat
  • 17/9-27/9
  • 2 total stops
  • 33h 05m total
  • Toronto to London
Search Deals
13/9
  • 13/9
  • 1 total stop
  • 9h 30m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 0% potential increase in price.
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 2 August 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
Quickest round-trip

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 5/11

5:45 p.m.-8:10 a.m.

1 stop9h 25m

Southampton Eastleigh

Fri 13/11

8:40 a.m.-7:15 p.m.

1 stop15h 35m

C$ 954

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 30/11

6:04 p.m.-5:00 p.m.

2 stops17h 56m

Southampton Eastleigh

Fri 11/12

8:40 a.m.-7:15 p.m.

1 stop15h 35m

C$ 992

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 30/11

6:04 p.m.-5:00 p.m.

2 stops17h 56m

Southampton Eastleigh

Sat 12/12

9:25 a.m.-10:57 p.m.

2 stops18h 32m

C$ 1,026

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 15/9

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

1 stop11h 00m

Southampton Eastleigh

Sat 19/9

5:20 p.m.-10:59 p.m.

2 stops34h 39m

C$ 1,103

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 20/8

6:00 a.m.-8:45 a.m.

2 stops21h 45m

Southampton Eastleigh

Thu 17/9

9:05 a.m.-11:12 p.m.

2 stops19h 07m

C$ 1,268

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Wed 16/9

7:00 a.m.-4:20 p.m.

3 stops28h 20m

Southampton Eastleigh

Wed 23/9

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

3 stops29h 11m

C$ 1,425

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 1/12

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

1 stop9h 15m

Southampton Eastleigh

Mon 14/12

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

1 stop27h 10m

C$ 1,443
Cheapest one-way
Quickest one-way

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 13/9

9:55 p.m.-12:25 p.m.

1 stop9h 30m

C$ 318

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 12/9

7:15 p.m.-12:05 p.m.

2 stops11h 50m

C$ 539

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Sat 12/9

4:55 p.m.-7:30 p.m.

3 stops45h 35m

C$ 546

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 13 hours 50 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 (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (27 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airline flying from Toronto to Portsmouth is Aer Lingus.

Aer Lingus
Aer Lingus
From C$ 1,102

What are the cheapest airlines that fly to Portsmouth?

The cheapest airline flying from Toronto to Portsmouth is 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, TAP AIR PORTUGAL 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$ 446, however they can be found for as little as C$ 186.

  • 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 25 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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