C$ 318+ Cheap flights to Portsmouth

— LHR
2 Oct — 9 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

Tue 3/115:55 p.m. -
1 stop9h 15m
Wed 11/118:40 a.m. -
1 stop12h 00m
Deal found 31/8C$ 930
Tue 3/115:55 p.m. -
1 stop9h 15m
Fri 13/118:40 a.m. -
1 stop15h 35m
Deal found 31/8C$ 941
Wed 4/119:15 p.m. -
1 stop29h 55m
Tue 10/115:20 p.m. -
1 stop30h 55m
Deal found 31/8C$ 961
Wed 4/115:55 p.m. -
1 stop9h 15m
Thu 12/115:20 p.m. -
1 stop27h 20m
Deal found 31/8C$ 972
Wed 4/119:15 p.m. -
1 stop14h 35m
Sat 14/119:25 a.m. -
2 stops18h 32m
Deal found 31/8C$ 980
Mon 21/94:45 p.m. -
1 stop19h 05m
Mon 2/115:45 p.m. -
1 stop30h 30m
Deal found 1/9C$ 987
Wed 4/119:15 p.m. -
1 stop29h 55m
Sun 8/115:30 p.m. -
2 stops28h 44m
Deal found 31/8C$ 999
Mon 2/116:00 a.m. -
2 stops29h 50m
Fri 13/118:40 a.m. -
1 stop12h 00m
Deal found 31/8C$ 1,011
Tue 3/115:55 p.m. -
1 stop9h 15m
Sun 15/119:30 a.m. -
1 stop11h 10m
Deal found 31/8C$ 1,019
Sun 13/96:10 p.m. -
2 stops41h 40m
Thu 5/115:35 p.m. -
1 stop27h 05m
Deal found 1/9C$ 1,026

Find flight deals to Portsmouth

Round-trip from

C$ 780

One-way from

C$ 318

Popular in

December

Cheapest in

January

Average price

C$ 890
Icelandair
  • Icelandair
  • 24/11-2/12
  • 2 total stops
  • 21h 35m total
  • Toronto to London
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10/10
  • 10/10
  • 1 total stop
  • 27h 45m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 0% potential increase in price (C$ 4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 24 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

Thu 5/11

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

1 stop30h 40m

Southampton Eastleigh

Tue 17/11

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

1 stop15h 35m

C$ 972

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 4/11

12:10 p.m.-8:10 a.m.

2 stops15h 00m

Southampton Eastleigh

Sat 14/11

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

2 stops18h 32m

C$ 1,013

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 13/9

6:10 p.m.-4:50 p.m.

2 stops41h 40m

Southampton Eastleigh

Wed 4/11

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

1 stop27h 05m

C$ 1,026

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 1/11

9:15 p.m.-8:10 a.m.

1 stop29h 55m

Southampton Eastleigh

Wed 11/11

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

1 stop12h 00m

C$ 1,072
Quickest round-trip

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Tue 3/11

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

1 stop9h 15m

Southampton Eastleigh

Wed 11/11

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

1 stop12h 00m

C$ 1,073

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 4/11

6:30 p.m.-5:05 p.m.

2 stops17h 35m

Southampton Eastleigh

Fri 13/11

5:35 p.m.-4:10 p.m.

2 stops27h 35m

C$ 1,112

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Fri 25/12

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

1 stop14h 45m

Southampton Eastleigh

Thu 31/12

8:40 a.m.-1:24 p.m.

2 stops33h 44m

C$ 1,131

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 27/12

9:15 p.m.-8:10 a.m.

1 stop29h 55m

Southampton Eastleigh

Tue 5/1

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

2 stops28h 56m

C$ 1,309

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 1/10

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

1 stop29h 50m

Southampton Eastleigh

Mon 5/10

5:20 p.m.-11:29 p.m.

2 stops35h 09m

C$ 1,321

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 27/12

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

1 stop14h 45m

Southampton Eastleigh

Mon 4/1

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

1 stop30h 45m

C$ 1,496

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/8

Showing 1-10 of 23 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 17 hours 2 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 (31 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$ 1,076
Aer Lingus
Aer Lingus
From C$ 1,091

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$ 553, 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 50 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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