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C$ 517+ 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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
6 Apr — 13 Apr1
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 7 March 2026.

Mon 5/106:20 p.m.
YYZ
-
SOU
2 stops20h 10m
Multiple Airlines
Sun 18/108:00 p.m.
SOU
-
YYZ
2 stops24h 00m
Multiple Airlines
Deal found 3/3C$ 841
Wed 11/36:00 a.m.
YYZ
-
SOU
2 stops31h 25m
Delta
Wed 18/35:35 p.m.
SOU
-
YYZ
1 stop30h 40m
Delta
Deal found 3/3C$ 945
Wed 29/49:55 p.m.
YYZ
-
SOU
1 stop13h 55m
Delta
Sat 9/55:20 p.m.
SOU
-
YYZ
1 stop25h 00m
Delta
Deal found 6/3C$ 950
Wed 27/510:05 p.m.
YYZ
-
SOU
1 stop28h 20m
Multiple Airlines
Mon 8/68:00 p.m.
SOU
-
YYZ
1 stop22h 20m
Multiple Airlines
Deal found 6/3C$ 957
Tue 17/36:50 p.m.
YYZ
-
SOU
1 stop9h 30m
Delta
Wed 25/38:50 a.m.
SOU
-
YYZ
2 stops28h 38m
Delta
Deal found 5/3C$ 966
Wed 23/911:10 p.m.
YYZ
-
SOU
2 stops15h 20m
Multiple Airlines
Sat 3/109:20 a.m.
SOU
-
YYZ
2 stops14h 50m
Multiple Airlines
Deal found 4/3C$ 981
Wed 29/49:55 p.m.
YYZ
-
SOU
1 stop13h 55m
Delta
Fri 8/59:05 a.m.
SOU
-
YYZ
2 stops33h 25m
Delta
Deal found 6/3C$ 988
Thu 30/46:00 a.m.
YYZ
-
SOU
2 stops21h 35m
Delta
Thu 7/55:20 p.m.
SOU
-
YYZ
1 stop31h 35m
Delta
Deal found 6/3C$ 990
Sun 15/36:14 p.m.
YYZ
-
SOU
2 stops34h 06m
Delta
Wed 25/35:35 p.m.
SOU
-
YYZ
2 stops28h 14m
Delta
Deal found 5/3C$ 999
Thu 24/98:45 p.m.
YYZ
-
SOU
2 stops15h 05m
Multiple Airlines
Sat 3/109:20 a.m.
SOU
-
YYZ
2 stops14h 50m
Multiple Airlines
Deal found 4/3C$ 1,001
Wed 23/92:55 p.m.
YTZ
-
SOU
2 stops12h 45m
Multiple Airlines
Sat 3/109:10 a.m.
SOU
-
YTZ
2 stops17h 24m
Multiple Airlines
Deal found 4/3C$ 1,452
Thu 24/92:55 p.m.
YTZ
-
SOU
2 stops12h 45m
Multiple Airlines
Sat 3/109:10 a.m.
SOU
-
YTZ
2 stops17h 24m
Multiple Airlines
Deal found 4/3C$ 1,516

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 7 March 2026.

Round-trip from

C$ 703

One-way from

C$ 517

Popular in

December

Cheapest in

May

Average price

C$ 829
Icelandair
  • Icelandair
  • 3/4-30/4
  • 2 total stops
  • 21h 15m total
  • Toronto to London
Search Deals
20/4
  • 20/4
  • 3 total stops
  • 28h 10m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 38 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 March 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 7 March 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

Wed 29/4

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

1 stop13h 55m

Southampton Eastleigh

Sat 9/5

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

1 stop25h 00m

C$ 950

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 29/3

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

1 stop10h 50m

Southampton Eastleigh

Thu 23/4

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

1 stop25h 00m

C$ 950

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 29/3

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

1 stop10h 50m

Southampton Eastleigh

Tue 21/4

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

1 stop25h 00m

C$ 950

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 4/5

6:00 a.m.-8:35 a.m.

2 stops21h 35m

Southampton Eastleigh

Mon 11/5

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

1 stop25h 00m

C$ 990

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 4/5

12:09 p.m.-8:35 a.m.

2 stops15h 26m

Southampton Eastleigh

Sun 10/5

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

1 stop25h 00m

C$ 990

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 27/5

10:05 p.m.-7:00 p.m.

2 stops15h 55m

Southampton Eastleigh

Mon 8/6

8:00 p.m.-1:20 p.m.

1 stop22h 20m

C$ 995

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 29/4

6:00 a.m.-8:35 a.m.

2 stops21h 35m

Southampton Eastleigh

Thu 7/5

9:05 a.m.-10:59 p.m.

2 stops18h 54m

C$ 1,021

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 30/4

6:00 a.m.-8:35 a.m.

2 stops21h 35m

Southampton Eastleigh

Thu 7/5

9:05 a.m.-10:59 p.m.

2 stops18h 54m

C$ 1,021

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 4/6

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

1 stop10h 50m

Southampton Eastleigh

Mon 8/6

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

1 stop25h 00m

C$ 1,174

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 11/3

12:15 p.m.-8:20 a.m.

2 stops16h 05m

Southampton Eastleigh

Wed 18/3

5:35 p.m.-5:24 p.m.

2 stops27h 49m

C$ 1,615

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 21 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 11 hours 22 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.

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$ 853

What are the cheapest airlines that fly to Portsmouth?

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

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 7 March 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
1,467 reviews
Check prices

Crew

8.4

Boarding

7.8

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,467 reviews
KLM
7.8
Good
1,467 reviews
Check prices

Crew

8.4

Boarding

7.8

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Aer Lingus
7.2
Good
1,471 reviews
KLM
7.8
Good
1,467 reviews
Check prices

Crew

8.4

Boarding

7.8

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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$ 155, 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 (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. 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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