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C$ 362+ Cheap flights to Portsmouth

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
19 Jun — 26 Jun1
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
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 20 May 2026.

Wed 3/69:35 p.m.
YYZ
-
SOU
1 stop14h 15m
Multiple Airlines
Wed 10/68:00 p.m.
SOU
-
YYZ
2 stops26h 10m
Multiple Airlines
Deal found 15/5C$ 809
Wed 23/97:15 p.m.
YYZ
-
SOU
1 stop10h 50m
Multiple Airlines
Sun 4/1010:00 a.m.
SOU
-
YYZ
1 stop30h 00m
Multiple Airlines
Deal found 20/5C$ 942
Mon 25/59:35 p.m.
YYZ
-
SOU
1 stop29h 30m
Multiple Airlines
Sun 7/68:00 p.m.
SOU
-
YYZ
2 stops24h 00m
Multiple Airlines
Deal found 20/5C$ 947
Sun 7/67:15 p.m.
YYZ
-
SOU
1 stop12h 10m
Multiple Airlines
Sun 21/66:20 p.m.
SOU
-
YYZ
1 stop21h 40m
Multiple Airlines
Deal found 18/5C$ 952
Thu 28/54:45 p.m.
YYZ
-
SOU
1 stop19h 05m
Delta
Mon 1/65:20 p.m.
SOU
-
YYZ
1 stop31h 35m
Delta
Deal found 19/5C$ 953
Thu 28/59:55 p.m.
YYZ
-
SOU
1 stop13h 55m
Delta
Fri 5/69:05 a.m.
SOU
-
YYZ
1 stop15h 50m
Delta
Deal found 20/5C$ 954
Mon 1/64:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Wed 17/65:20 p.m.
SOU
-
YYZ
1 stop25h 00m
Delta
Deal found 17/5C$ 956
Tue 3/115:55 p.m.
YYZ
-
SOU
1 stop9h 15m
Delta
Mon 23/118:40 a.m.
SOU
-
YYZ
1 stop12h 00m
Delta
Deal found 19/5C$ 958
Thu 2/711:55 p.m.
YYZ
-
SOU
1 stop14h 35m
Multiple Airlines
Thu 9/75:20 p.m.
SOU
-
YYZ
1 stop27h 30m
Multiple Airlines
Deal found 18/5C$ 961
Thu 18/611:55 p.m.
YYZ
-
SOU
1 stop14h 35m
Multiple Airlines
Wed 24/65:20 p.m.
SOU
-
YYZ
2 stops27h 30m
Multiple Airlines
Deal found 18/5C$ 985
Wed 3/66:30 p.m.
YTZ
-
SOU
2 stops20h 00m
Multiple Airlines
Wed 10/612:20 p.m.
SOU
-
YTZ
3 stops34h 32m
Multiple Airlines
Deal found 15/5C$ 1,059
Fri 26/63:35 p.m.
YTZ
-
SOU
3 stops22h 55m
Multiple Airlines
Mon 6/712:20 p.m.
SOU
-
YTZ
3 stops32h 31m
Multiple Airlines
Deal found 18/5C$ 1,517

Find flight deals to Portsmouth

Find the latest flights to Portsmouth in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 20 May 2026.

Round-trip from

C$ 800

One-way from

C$ 362

Popular in

December

Cheapest in

February

Average price

C$ 846
Air Transat
  • Air Transat
  • 14/6-23/6
  • 2 total stops
  • 21h 48m total
  • Toronto to London
Search Deals
2/6
  • 2/6
  • 2 total stops
  • 29h 25m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 20 May 2026.
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 - SOU

YYZSOU

Toronto Pearson Intl

Fri 12/6

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

1 stop11h 00m

Southampton Eastleigh

Tue 16/6

5:20 p.m.-7:55 p.m.

1 stop31h 35m

C$ 953

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 3/11

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

1 stop14h 45m

Southampton Eastleigh

Tue 24/11

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

1 stop27h 10m

C$ 958

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 30/5

12:05 p.m.-8:45 a.m.

2 stops15h 40m

Southampton Eastleigh

Sun 7/6

9:15 a.m.-7:55 p.m.

1 stop15h 40m

C$ 993

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 1/6

6:10 a.m.-8:35 a.m.

2 stops21h 25m

Southampton Eastleigh

Wed 17/6

5:20 p.m.-1:20 p.m.

1 stop25h 00m

C$ 996
Quickest round-trip

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 8/11

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

1 stop9h 15m

Southampton Eastleigh

Tue 24/11

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

1 stop12h 00m

C$ 1,008

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 9/11

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

1 stop9h 15m

Southampton Eastleigh

Sat 21/11

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

1 stop27h 10m

C$ 1,008

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 7/9

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

1 stop10h 50m

Southampton Eastleigh

Sat 19/9

9:15 a.m.-10:57 p.m.

2 stops18h 42m

C$ 1,049

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Fri 6/11

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

1 stop30h 40m

Southampton Eastleigh

Thu 19/11

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

1 stop12h 00m

C$ 1,057

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Wed 3/6

6:30 p.m.-7:30 p.m.

2 stops20h 00m

Southampton Eastleigh

Wed 10/6

12:20 p.m.-5:52 p.m.

3 stops34h 32m

C$ 1,059

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Fri 26/6

3:35 p.m.-7:30 p.m.

3 stops22h 55m

Southampton Eastleigh

Mon 6/7

12:20 p.m.-3:51 p.m.

3 stops32h 31m

C$ 1,517

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 16 hours 57 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 Tuesday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (15 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$ 1,012
KLM
KLM
From C$ 1,032

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

Plan your trip to Portsmouth by taking into account the average rainfall totals 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

Plan your trip to Portsmouth by taking into account the average temperature totals 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).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portsmouth. Reviews last updated 20 May 2026.
See what other customers who have flown with KLM and Aer Lingus to the United Kingdom have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,516 reviews
Check prices

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,516 reviews
KLM
7.8
Good
1,516 reviews
Check prices

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,571 reviews
KLM
7.8
Good
1,516 reviews
Check prices

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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, WestJet 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$ 1,916, however they can be found for as little as C$ 155.

  • 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 (11 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. Aeropartment & Aerotel, London Heathrow Airport, Terminal 4, Ev Stations & Cheap Parking On Site! is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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