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C$ 562+ 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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
5 Feb — 12 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 6 January 2026.

Round-trip from

C$ 725

One-way from

C$ 555

Popular in

December

Cheapest in

February

Average price

C$ 752
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 14/4-29/4
  • 2 total stops
  • 26h 30m total
  • Toronto to London
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26/6
  • 26/6
  • 2 total stops
  • 35h 30m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 43 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).
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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 6 January 2026.

Thu 26/29:15 p.m.YYZ - SOU
1 stop14h 45mDelta
Thu 12/38:50 a.m.SOU - YYZ
1 stop15h 25mDelta
Deal found 6/1C$ 826
Thu 22/19:15 p.m.YYZ - SOU
1 stop30h 30mDelta
Wed 4/25:35 p.m.SOU - YYZ
1 stop27h 05mDelta
Deal found 5/1C$ 827
Thu 19/29:15 p.m.YYZ - SOU
1 stop30h 35mDelta
Sun 1/39:30 a.m.SOU - YYZ
1 stop11h 10mDelta
Deal found 3/1C$ 829
Thu 26/26:00 a.m.YYZ - SOU
2 stops30h 00mDelta
Tue 17/38:50 a.m.SOU - YYZ
1 stop15h 25mDelta
Deal found 6/1C$ 865
Mon 26/16:00 a.m.YYZ - SOU
2 stops30h 05mDelta
Fri 30/15:35 p.m.SOU - YYZ
1 stop27h 05mDelta
Deal found 5/1C$ 866
Thu 19/25:50 p.m.YYZ - SOU
1 stop9h 35mDelta
Sat 28/29:25 a.m.SOU - YYZ
2 stops14h 44mDelta
Deal found 3/1C$ 867
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$ 887
Fri 27/26:11 p.m.YYZ - SOU
2 stops33h 39mDelta
Wed 18/38:50 a.m.SOU - YYZ
2 stops18h 08mDelta
Deal found 6/1C$ 898
Sun 15/212:07 p.m.YYZ - SOU
2 stops15h 43mDelta
Sun 22/25:45 p.m.SOU - YYZ
2 stops34h 09mDelta
Deal found 4/1C$ 900
Thu 8/17:45 a.m.YYZ - SOU
2 stops28h 20mAir Europa
Mon 19/15:35 p.m.SOU - YYZ
1 stop27h 05mAir Europa
Deal found 5/1C$ 904
Fri 10/44:45 p.m.YYZ - SOU
1 stop11h 00mDelta
Sat 18/45:20 p.m.SOU - YYZ
1 stop31h 35mDelta
Deal found 4/1C$ 909
Sat 28/212:11 p.m.YYZ - SOU
2 stops24h 04mDelta
Mon 16/35:40 p.m.SOU - YYZ
1 stop27h 00mDelta
Deal found 6/1C$ 925

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 6 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$ 826

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$ 826

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$ 826

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$ 826

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$ 826

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

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

1 stop11h 50m

C$ 826

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 22/1

9:15 p.m.-8:45 a.m.

1 stop30h 30m

Southampton Eastleigh

Wed 4/2

5:35 p.m.-3:40 p.m.

1 stop27h 05m

C$ 827

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 19/2

9:15 p.m.-8:50 a.m.

1 stop30h 35m

Southampton Eastleigh

Sat 28/2

5:30 p.m.-7:15 p.m.

1 stop30h 45m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 21/2

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

1 stop15h 00m

Southampton Eastleigh

Sat 28/2

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

1 stop27h 10m

C$ 829

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 25/2

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

1 stop9h 30m

Southampton Eastleigh

Thu 5/3

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 829

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 25 results
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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 15 hours 32 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 (35 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (18 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$ 1,033
Aer Lingus
Aer Lingus
From C$ 1,022

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 6 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

Overall

7.7

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Crew

8.4

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

Overall

7.7

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Crew

8.4

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
1,425 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Overall

7.7

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Crew

8.4

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$ 156, however they can be found for as little as C$ 156.

  • 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. Aerotel London Heathrow is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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