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C$ 568+ 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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

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 8 January 2026.

Round-trip from

C$ 726

One-way from

C$ 568

Popular in

December

Cheapest in

February

Average price

C$ 755
Icelandair
  • Icelandair
  • 1/2-11/2
  • 2 total stops
  • 21h 10m total
  • Toronto to London
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22/2
  • 22/2
  • 3 total stops
  • 36h 50m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 5% potential increase in price (C$ 44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals to Portsmouth

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 8 January 2026.

Thu 26/29:15 p.m.YYZ - SOU
1 stop14h 45mDelta
Tue 17/38:50 a.m.SOU - YYZ
1 stop15h 25mDelta
Deal found 6/1C$ 829
Mon 26/16:00 a.m.YYZ - SOU
2 stops21h 50mDelta
Fri 30/15:35 p.m.SOU - YYZ
1 stop30h 40mDelta
Deal found 7/1C$ 867
Mon 16/25:50 p.m.YYZ - SOU
1 stop10h 00mDelta
Mon 23/28:50 a.m.SOU - YYZ
2 stops37h 28mDelta
Deal found 7/1C$ 869
Fri 20/25:50 p.m.YYZ - SOU
1 stop10h 00mDelta
Sun 1/39:30 a.m.SOU - YYZ
1 stop11h 10mDelta
Deal found 8/1C$ 889
Wed 4/35:50 p.m.YYZ - SOU
1 stop9h 30mDelta
Fri 13/38:50 a.m.SOU - YYZ
1 stop11h 50mDelta
Deal found 6/1C$ 890
Sat 14/26:11 p.m.YYZ - SOU
2 stops41h 54mDelta
Wed 18/25:35 p.m.SOU - YYZ
2 stops28h 43mDelta
Deal found 7/1C$ 901
Fri 13/25:50 p.m.YYZ - SOU
1 stop9h 55mDelta
Fri 20/29:00 a.m.SOU - YYZ
2 stops18h 40mDelta
Deal found 7/1C$ 929
Sat 28/25:50 p.m.YYZ - SOU
1 stop10h 00mDelta
Mon 16/35:40 p.m.SOU - YYZ
1 stop27h 00mDelta
Deal found 6/1C$ 950
Thu 14/511:30 p.m.YYZ - SOU
2 stops12h 20mKLM
Sat 23/55:20 p.m.SOU - YYZ
1 stop31h 35mKLM
Deal found 6/1C$ 1,157
Tue 17/25:50 p.m.YYZ - SOU
1 stop10h 00mDelta
Fri 20/25:35 p.m.SOU - YYZ
1 stop30h 40mDelta
Deal found 7/1C$ 1,165
Thu 14/511:55 p.m.YYZ - SOU
1 stop11h 40mMultiple Airlines
Sat 23/59:10 a.m.SOU - YYZ
1 stop11h 40mMultiple Airlines
Deal found 6/1C$ 1,204
Sun 7/612:30 p.m.YTZ - SOU
2 stops26h 00mMultiple Airlines
Sun 21/69:10 a.m.SOU - YTZ
2 stops35h 41mMultiple Airlines
Deal found 7/1C$ 1,849

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 8 January 2026.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 1/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Thu 12/3

8:50 a.m.-4:40 p.m.

1 stop11h 50m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 26/2

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

1 stop14h 45m

Southampton Eastleigh

Tue 17/3

8:50 a.m.-8:15 p.m.

1 stop15h 25m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 2/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Tue 17/3

8:50 a.m.-8:15 p.m.

1 stop15h 25m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 4/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Thu 12/3

8:50 a.m.-4:40 p.m.

1 stop11h 50m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 3/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Tue 17/3

8:50 a.m.-8:15 p.m.

1 stop15h 25m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 26/1

6:00 a.m.-8:50 a.m.

2 stops21h 50m

Southampton Eastleigh

Fri 30/1

5:35 p.m.-7:15 p.m.

1 stop30h 40m

C$ 867

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 2/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Wed 18/3

8:50 a.m.-10:58 p.m.

2 stops18h 08m

C$ 868

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 2/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Thu 12/3

6:05 p.m.-10:58 p.m.

2 stops32h 53m

C$ 868

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 4/3

5:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Wed 18/3

8:50 a.m.-11:19 a.m.

2 stops30h 29m

C$ 868

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 28/2

6:11 p.m.-8:20 a.m.

2 stops33h 09m

Southampton Eastleigh

Thu 12/3

8:50 a.m.-4:40 p.m.

1 stop11h 50m

C$ 868

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 22 results
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2
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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
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 12 hours 27 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 Wednesday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (20 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$ 1,037
Aer Lingus
Aer Lingus
From C$ 1,026

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 8 January 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
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Aer Lingus
7.2
Good
1,429 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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$ 157, however they can be found for as little as C$ 157.

  • 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 30 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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