C$ 318+ Cheap flights to Portsmouth

— LHR
8 Oct — 15 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

Thu 5/115:45 p.m. -
1 stop9h 25m
Tue 24/118:40 a.m. -
1 stop15h 35m
Deal found 3/9C$ 956
Tue 20/104:45 p.m. -
1 stop11h 00m
Sun 6/125:30 p.m. -
1 stop27h 10m
Deal found 5/9C$ 990
Thu 5/119:15 p.m. -
1 stop30h 40m
Thu 12/118:40 a.m. -
1 stop15h 35m
Deal found 4/9C$ 991
Thu 22/104:45 p.m. -
1 stop10h 50m
Tue 8/128:40 a.m. -
2 stops19h 27m
Deal found 5/9C$ 1,027
Sat 17/106:00 a.m. -
2 stops21h 45m
Tue 8/128:40 a.m. -
1 stop15h 35m
Deal found 5/9C$ 1,028
Thu 5/115:45 p.m. -
1 stop9h 25m
Wed 11/118:40 a.m. -
2 stops29h 15m
Deal found 4/9C$ 1,030
Sat 7/116:28 p.m. -
2 stops17h 22m
Tue 10/115:35 p.m. -
1 stop27h 05m
Deal found 4/9C$ 1,031
Thu 22/104:45 p.m. -
1 stop10h 50m
Thu 29/105:35 p.m. -
1 stop27h 05m
Deal found 7/9C$ 1,035
Thu 22/109:35 p.m. -
1 stop14h 15m
Thu 29/101:55 p.m. -
2 stops30h 05m
Deal found 7/9C$ 1,049
Sat 17/106:00 a.m. -
2 stops21h 45m
Sat 5/125:30 p.m. -
2 stops34h 37m
Deal found 5/9C$ 1,060
Thu 1/106:25 p.m. -
2 stops41h 25m
Mon 5/105:20 p.m. -
2 stops29h 18m
Deal found 5/9C$ 1,068
Thu 22/104:55 p.m. -
3 stops21h 35m
Thu 29/105:10 p.m. -
3 stops31h 56m
Deal found 7/9C$ 1,882

Find flight deals to Portsmouth

Round-trip from

C$ 775

One-way from

C$ 318

Popular in

December

Cheapest in

January

Average price

C$ 885
Air Transat
  • Air Transat
  • 19/9-26/9
  • 2 total stops
  • 32h 26m total
  • Toronto to London
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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. 0% potential increase in price (C$ 6 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

9:35 p.m.-12:25 p.m.

2 stops33h 50m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 395

TorontoSouthampton

YTZ Toronto Island - SOU Southampton Eastleigh

YTZSOU

Toronto Island

Sun 18/10

7:05 p.m.-7:30 p.m.

3 stops43h 25m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 448

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 5/11

8:15 p.m.-11:55 a.m.

2 stops34h 40m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 532

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$ 535

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Sun 18/10

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$ 872
Quickest round-trip

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Mon 19/10

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$ 872

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 22/10

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

1 stop29h 50m

Southampton Eastleigh

Wed 31/12

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

Nonstop0h 00m

C$ 875

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 5/11

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

1 stop9h 25m

Southampton Eastleigh

Tue 24/11

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

1 stop15h 35m

C$ 956

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 22/10

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

1 stop29h 50m

Southampton Eastleigh

Mon 7/12

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

1 stop12h 00m

C$ 990

TorontoSouthampton

YYZ Toronto Pearson Intl - SOU Southampton Eastleigh

YYZSOU

Toronto Pearson Intl

Thu 22/10

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

1 stop29h 50m

Southampton Eastleigh

Wed 2/12

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

1 stop12h 00m

C$ 990

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 22 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 45 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 Sunday (46 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (33 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$ 1,071
Aer Lingus
Aer Lingus
From C$ 1,087

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$ 562, however they can be found for as little as C$ 188.

  • 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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