C$ 527+ Cheap flights to Portsmouth

— LHR
20 Oct — 27 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 15/9C$ 954
Wed 14/105:35 p.m. -
1 stop10h 05m
Wed 21/109:20 a.m. -
1 stop11h 30m
Deal found 17/9C$ 961
Thu 5/115:45 p.m. -
1 stop9h 25m
Wed 18/118:40 a.m. -
1 stop12h 00m
Deal found 16/9C$ 965
Sun 22/119:15 p.m. -
1 stop14h 50m
Wed 2/128:40 a.m. -
1 stop12h 00m
Deal found 16/9C$ 996
Sun 18/109:55 p.m. -
1 stop29h 40m
Wed 28/108:40 a.m. -
1 stop15h 35m
Deal found 15/9C$ 997
Wed 14/1010:04 a.m. -
2 stops17h 31m
Wed 21/109:15 a.m. -
1 stop15h 00m
Deal found 17/9C$ 1,032
Fri 20/116:04 p.m. -
2 stops33h 51m
Mon 30/115:30 p.m. -
1 stop30h 45m
Deal found 16/9C$ 1,035
Sat 17/106:00 a.m. -
2 stops29h 50m
Thu 29/105:35 p.m. -
1 stop27h 05m
Deal found 15/9C$ 1,036

Find flight deals to Portsmouth

Round-trip from

C$ 780

One-way from

C$ 544

Popular in

December

Cheapest in

February

Average price

C$ 905
17/10-22/10
  • 17/10-22/10
  • 2 total stops
  • 23h 20m total
  • Toronto to London
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12/10-31/12
  • 12/10-31/12
  • 3 total stops
  • 41h 05m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 1% potential increase in price (C$ 13 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 27 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

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$ 527

TorontoSouthampton

YTZ Toronto Island - SOU Southampton Eastleigh

YTZSOU

Toronto Island

Wed 4/11

5:50 p.m.-2:10 p.m.

3 stops39h 20m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 660

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 1/10

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

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$ 886

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 17/12

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$ 886

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Mon 5/10

4:45 p.m.-4:50 p.m.

1 stop19h 05m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 886

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Fri 2/10

6:25 p.m.-8:45 a.m.

2 stops33h 20m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 920

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 21/10

12:15 p.m.-8:35 a.m.

2 stops15h 20m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 926

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Wed 14/10

7:15 p.m.-11:05 a.m.

1 stop10h 50m

Southampton Eastleigh

Wed 21/10

10:45 a.m.-11:00 a.m.

1 stop29h 15m

C$ 954
Quickest round-trip

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sat 19/12

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

1 stop10h 00m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 984

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

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 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 (46 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 KLM and Aer Lingus.

KLM
KLM
From C$ 1,084
Aer Lingus
Aer Lingus
From C$ 1,099

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$ 817, however they can be found for as little as C$ 191.

  • 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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