C$ 310+ Cheap flights to Portsmouth

— LHR
15 Oct — 22 Oct1
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

Wed 14/107:15 p.m. -
1 stop10h 50m
Wed 21/1010:45 a.m. -
1 stop29h 15m
Deal found 14/9C$ 899
Sun 18/109:55 p.m. -
1 stop29h 40m
Thu 3/125:30 p.m. -
1 stop27h 10m
Deal found 11/9C$ 995
Sat 10/1011:55 p.m. -
1 stop27h 45m
Sat 17/107:50 a.m. -
1 stop32h 10m
Deal found 12/9C$ 1,007
Sun 18/109:55 p.m. -
1 stop29h 40m
Mon 7/128:40 a.m. -
2 stops37h 40m
Deal found 11/9C$ 1,034
Thu 29/106:45 p.m. -
1 stop9h 25m
Thu 5/118:40 a.m. -
1 stop15h 35m
Deal found 14/9C$ 1,066
Sun 11/105:35 p.m. -
1 stop10h 05m
Sun 18/109:20 a.m. -
1 stop11h 30m
Deal found 13/9C$ 1,068
Wed 14/1012:15 p.m. -
2 stops15h 20m
Wed 21/109:15 a.m. -
1 stop15h 00m
Deal found 14/9C$ 1,075
Wed 14/1012:15 p.m. -
2 stops15h 20m
Wed 21/109:15 a.m. -
1 stop15h 00m
Deal found 12/9C$ 1,107
Tue 15/99:55 p.m. -
2 stops29h 40m
Tue 22/91:25 p.m. -
1 stop26h 35m
Deal found 14/9C$ 1,111
Sat 10/1012:30 p.m. -
3 stops23h 20m
Sat 17/105:20 p.m. -
3 stops27h 30m
Deal found 12/9C$ 1,438
Thu 29/1010:35 a.m. -
3 stops18h 15m
Thu 5/119:20 a.m. -
2 stops15h 53m
Deal found 14/9C$ 1,789
Sat 19/910:00 a.m. -
3 stops25h 15m
Sat 26/98:00 p.m. -
3 stops29h 11m
Deal found 12/9C$ 2,134

Find flight deals to Portsmouth

Round-trip from

C$ 657

One-way from

C$ 310

Popular in

December

Cheapest in

February

Average price

C$ 889
Icelandair
  • Icelandair
  • 24/11-9/12
  • 2 total stops
  • 45h 30m total
  • Toronto to London
Search Deals
10/10-31/12
  • 10/10-31/12
  • 1 total stop
  • 27h 45m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
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Average for round-trip flights in September 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

Sat 10/10

11:55 p.m.-8:40 a.m.

1 stop27h 45m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 310

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Mon 12/10

7:15 p.m.-12:50 p.m.

1 stop12h 35m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 453

TorontoSouthampton

YTZ Toronto Island - SOU Southampton Eastleigh

YTZSOU

Toronto Island

Mon 12/10

2:05 p.m.-8:05 a.m.

3 stops37h 00m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 524

TorontoSouthampton

YTZ Toronto Island - SOU Southampton Eastleigh

YTZSOU

Toronto Island

Sat 10/10

4:55 p.m.-11:50 a.m.

3 stops37h 55m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 532
Quickest round-trip

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 17/12

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

1 stop9h 25m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 878

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Fri 18/12

9:15 p.m.-8:55 a.m.

1 stop30h 40m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 878

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 18/10

9:55 p.m.-4:50 p.m.

1 stop13h 55m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 881

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 21/10

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

1 stop10h 50m

Southampton Eastleigh

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 881

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Mon 19/10

9:55 p.m.-4:50 p.m.

1 stop13h 55m

Southampton Eastleigh

Wed 2/12

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

1 stop12h 00m

C$ 995

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 21/10

9:05 p.m.-8:35 a.m.

1 stop30h 30m

Southampton Eastleigh

Sat 5/12

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

1 stop27h 10m

C$ 995

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/9

Showing 1-10 of 21 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 14 hours 7 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 (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

What are the most popular airlines that fly to Portsmouth?

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

KLM
KLM
From C$ 1,077
Aer Lingus
Aer Lingus
From C$ 1,092

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, Virgin Atlantic 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$ 565, however they can be found for as little as C$ 189.

  • 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 (10 hours 0 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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