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C$ 540+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
26 Dec — 2 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

Find the latest flights to Portsmouth in 2025, 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 26 November 2025.

Round-trip from

C$ 782

One-way from

C$ 540

Popular in

December

Cheapest in

February

Average price

C$ 851
Air Canada
  • Air Canada
  • 3/2-10/2
  • 1 total stop
  • 19h 25m total
  • Toronto to London
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10/1
  • 10/1
  • 2 total stops
  • 38h 10m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 6% potential increase in price (C$ 62 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 26 November 2025.

Tue 25/119:15 p.m.YYZ - SOU
1 stop14h 45mDelta
Mon 1/126:05 p.m.SOU - YYZ
1 stop30h 10mDelta
Deal found 25/11C$ 1,288
Tue 25/115:50 p.m.YYZ - SOU
1 stop9h 20mDelta
Fri 5/125:30 p.m.SOU - YYZ
1 stop27h 10mDelta
Deal found 25/11C$ 1,338
Wed 26/119:52 a.m.YYZ - SOU
2 stops26h 33mDelta
Wed 3/128:40 a.m.SOU - YYZ
2 stops19h 17mDelta
Deal found 25/11C$ 1,362
Tue 25/115:50 p.m.YYZ - SOU
1 stop9h 20mDelta
Sun 30/116:05 p.m.SOU - YYZ
1 stop26h 35mDelta
Deal found 25/11C$ 1,538
Wed 3/124:44 p.m.YYZ - SOU
2 stops21h 56mBritish Airways
Tue 9/128:50 p.m.SOU - YYZ
2 stops23h 00mBritish Airways
Deal found 24/11C$ 1,555
Wed 3/124:44 p.m.YYZ - SOU
2 stops21h 56mBritish Airways
Mon 8/129:30 a.m.SOU - YYZ
1 stop11h 25mBritish Airways
Deal found 24/11C$ 1,590
Thu 25/129:15 p.m.YYZ - SOU
1 stop14h 45mDelta
Mon 29/126:05 p.m.SOU - YYZ
1 stop26h 35mDelta
Deal found 25/11C$ 1,764
Wed 24/129:15 p.m.YYZ - SOU
2 stops29h 50mKLM
Wed 31/128:40 a.m.SOU - YYZ
2 stops17h 00mKLM
Deal found 26/11C$ 1,865

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 26 November 2025.
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

Wed 18/2

5:50 p.m.-8:25 a.m.

1 stop9h 35m

Southampton Eastleigh

Sat 28/2

9:25 a.m.-7:15 p.m.

1 stop14h 50m

C$ 907

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 11/1

7:50 a.m.-8:50 a.m.

2 stops20h 00m

Southampton Eastleigh

Mon 26/1

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

1 stop30h 45m

C$ 950

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Fri 24/4

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

1 stop29h 35m

Southampton Eastleigh

Sat 16/5

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

1 stop31h 35m

C$ 962

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 11/1

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

2 stops21h 50m

Southampton Eastleigh

Fri 16/1

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

1 stop27h 05m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 10/1

5:15 p.m.-8:50 a.m.

2 stops34h 35m

Southampton Eastleigh

Wed 14/1

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

1 stop27h 05m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 11/1

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

2 stops21h 50m

Southampton Eastleigh

Thu 15/1

9:00 a.m.-7:15 p.m.

1 stop15h 15m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 11/1

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

2 stops21h 50m

Southampton Eastleigh

Sat 17/1

9:25 a.m.-3:40 p.m.

1 stop11h 15m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 10/1

6:13 p.m.-8:50 a.m.

2 stops33h 37m

Southampton Eastleigh

Sat 17/1

9:25 a.m.-3:40 p.m.

1 stop11h 15m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 13/1

12:10 p.m.-8:50 a.m.

2 stops15h 40m

Southampton Eastleigh

Sat 17/1

9:25 a.m.-3:40 p.m.

1 stop11h 15m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 12/1

7:45 a.m.-8:50 a.m.

2 stops20h 05m

Southampton Eastleigh

Thu 15/1

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

1 stop27h 05m

C$ 981

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/11

Showing 1-10 of 21 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 12 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.

When is the cheapest time to fly to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Portsmouth. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Portsmouth should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday at noon, when prices are usually at their highest.

Weekly flight availability to Portsmouth

The most flights from Toronto to Portsmouth are scheduled on a Monday (41 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airlines flying from Toronto to Portsmouth are KLM, Aer Lingus and Delta.

KLM
KLM
From C$ 1,058
Aer Lingus
Aer Lingus
From C$ 1,047
Delta
Delta
From C$ 871

What are the cheapest airlines that fly to Portsmouth?

The cheapest airlines flying from Toronto to Portsmouth are Delta, 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 26 November 2025.
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
1,423 reviews
Check prices

Food

7.2

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,423 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,381 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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$ 1,080, however they can be found for as little as C$ 134.

  • 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 35 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 Airport Terminal 2-3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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