C$ 341+ Cheap flights to Portsmouth

— LHR
21 Sep — 28 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

Mon 5/107:15 p.m. -
1 stop12h 35m
Mon 12/1012:55 p.m. -
1 stop27h 05m
Deal found 20/8C$ 945
Sat 17/104:45 p.m. -
1 stop11h 00m
Wed 21/109:15 a.m. -
1 stop33h 05m
Deal found 22/8C$ 971
Sat 17/104:45 p.m. -
1 stop11h 00m
Fri 23/105:20 p.m. -
2 stops28h 59m
Deal found 22/8C$ 1,010
Fri 16/106:10 p.m. -
2 stops33h 35m
Wed 21/109:15 a.m. -
1 stop15h 00m
Deal found 22/8C$ 1,011
Fri 16/106:10 p.m. -
2 stops33h 35m
Fri 23/105:20 p.m. -
2 stops28h 59m
Deal found 22/8C$ 1,043
Mon 5/106:00 p.m. -
2 stops17h 50m
Mon 12/105:20 p.m. -
1 stop25h 00m
Deal found 20/8C$ 1,047
Sat 17/104:45 p.m. -
1 stop11h 00m
Sat 24/109:20 a.m. -
1 stop15h 35m
Deal found 22/8C$ 1,072
Fri 25/125:55 p.m. -
1 stop10h 00m
Tue 29/128:40 a.m. -
1 stop15h 35m
Deal found 22/8C$ 1,097
Fri 16/106:10 p.m. -
2 stops33h 35m
Sat 24/109:20 a.m. -
1 stop15h 35m
Deal found 22/8C$ 1,110
Fri 16/106:10 p.m. -
2 stops33h 35m
Mon 26/108:40 a.m. -
2 stops30h 39m
Deal found 22/8C$ 1,143
Tue 25/87:15 p.m. -
1 stop10h 00m
Tue 8/91:25 p.m. -
1 stop26h 35m
Deal found 20/8C$ 1,163
Mon 5/104:55 p.m. -
3 stops34h 50m
Mon 12/105:20 p.m. -
3 stops31h 51m
Deal found 20/8C$ 1,278

Find flight deals to Portsmouth

Round-trip from

C$ 743

One-way from

C$ 341

Popular in

December

Cheapest in

February

Average price

C$ 1,149
11/10-17/10
  • 11/10-17/10
  • 2 total stops
  • 28h 50m total
  • Toronto to London
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2/10
  • 2/10
  • 2 total stops
  • 28h 30m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 0% potential increase in price.
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Cheapest flight prices on average. 2% potential price decrease (C$ 23 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
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 Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 14/1

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

1 stop14h 45m

Southampton Eastleigh

Wed 20/1

5:30 p.m.-3:35 p.m.

1 stop27h 05m

C$ 981

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 14/1

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

1 stop14h 45m

Southampton Eastleigh

Sat 16/1

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

1 stop30h 45m

C$ 981
Quickest round-trip

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 11/2

8:30 p.m.-5:00 p.m.

2 stops15h 30m

Southampton Eastleigh

Thu 18/2

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

1 stop12h 00m

C$ 1,053

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Mon 5/10

6:00 p.m.-4:50 p.m.

2 stops17h 50m

Southampton Eastleigh

Mon 12/10

9:05 a.m.-8:40 p.m.

2 stops16h 35m

C$ 1,105

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Fri 16/10

6:10 p.m.-8:45 a.m.

2 stops33h 35m

Southampton Eastleigh

Sat 24/10

9:20 a.m.-7:55 p.m.

1 stop15h 35m

C$ 1,110

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 10/9

9:55 p.m.-8:45 a.m.

1 stop29h 50m

Southampton Eastleigh

Tue 15/9

5:20 p.m.-7:15 p.m.

1 stop30h 55m

C$ 1,163

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 10/9

9:55 p.m.-8:45 a.m.

1 stop29h 50m

Southampton Eastleigh

Wed 16/9

9:15 a.m.-10:59 p.m.

2 stops18h 44m

C$ 1,201

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Tue 8/9

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

2 stops19h 45m

Southampton Eastleigh

Mon 14/9

9:05 a.m.-5:20 p.m.

2 stops37h 15m

C$ 1,243

TorontoSouthampton

YTZ Toronto Island - SOU Southampton Eastleigh

YTZSOU

Toronto Island

Mon 5/10

4:55 p.m.-8:45 a.m.

3 stops34h 50m

Southampton Eastleigh

Mon 12/10

5:20 p.m.-8:11 p.m.

3 stops31h 51m

C$ 1,278

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Fri 11/9

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

1 stop11h 00m

Southampton Eastleigh

Wed 16/9

9:15 a.m.-9:17 p.m.

2 stops17h 02m

C$ 1,397

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/8

Showing 1-10 of 26 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

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 22 hours 15 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 (29 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$ 1,082
KLM
KLM
From C$ 1,067

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

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

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$ 258, however they can be found for as little as C$ 183.

  • 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 40 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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