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C$ 574+ 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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
1 Jul — 8 Jul1
1 adult

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 June 2025.

Round-trip from

C$ 721

One-way from

C$ 574

Popular in

December

Cheapest in

February

Average price

C$ 913
Icelandair
  • Icelandair
  • 7/9-22/9
  • 2 total stops
  • 45h 50m total
  • Toronto to London
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19/10
  • 19/10
  • 2 total stops
  • 14h 30m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 3% potential increase in price (C$ 40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals to Portsmouth

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 June 2025.

Sat 20/94:45 p.m.YYZ - SOU
1 stop11h 00mDelta
Mon 13/105:35 p.m.SOU - YYZ
1 stop24h 45mDelta
Deal found 24/6C$ 804
Tue 2/98:50 p.m.YYZ - SOU
2 stops17h 40mMultiple Airlines
Thu 11/98:00 p.m.SOU - YYZ
2 stops28h 10mMultiple Airlines
Deal found 24/6C$ 863
Wed 5/112:30 p.m.YYZ - SOU
2 stops12h 55mKLM
Wed 19/119:00 a.m.SOU - YYZ
2 stops16h 35mKLM
Deal found 24/6C$ 1,060
Wed 5/115:25 p.m.YYZ - SOU
1 stop10h 20mAer Lingus
Wed 19/119:30 a.m.SOU - YYZ
1 stop11h 25mAer Lingus
Deal found 24/6C$ 1,122
Wed 17/95:20 p.m.YYZ - SOU
1 stop10h 20mBritish Airways
Mon 13/109:40 a.m.SOU - YYZ
1 stop11h 10mBritish Airways
Deal found 24/6C$ 1,206

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 June 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

Sat 20/9

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

1 stop11h 00m

Southampton Eastleigh

Mon 13/10

5:35 p.m.-1:20 p.m.

1 stop24h 45m

C$ 804

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 2/9

8:50 p.m.-7:30 p.m.

2 stops17h 40m

Southampton Eastleigh

Thu 11/9

8:00 p.m.-7:10 p.m.

2 stops28h 10m

C$ 863

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 5/11

2:30 p.m.-8:25 a.m.

2 stops12h 55m

Southampton Eastleigh

Wed 19/11

9:00 a.m.-8:35 p.m.

2 stops16h 35m

C$ 1,060

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 5/11

5:25 p.m.-8:45 a.m.

1 stop10h 20m

Southampton Eastleigh

Wed 19/11

9:30 a.m.-3:55 p.m.

1 stop11h 25m

C$ 1,122

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 17/9

5:20 p.m.-8:40 a.m.

1 stop10h 20m

Southampton Eastleigh

Mon 13/10

9:40 a.m.-3:50 p.m.

1 stop11h 10m

C$ 1,206

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 19/10

11:55 p.m.-7:25 p.m.

2 stops14h 30m

C$ 574

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Sun 10/8

9:30 a.m.-9:10 a.m.

3 stops18h 40m

C$ 617

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Fri 25/7

10:00 p.m.-8:35 a.m.

2 stops29h 35m

C$ 1,247

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 14/7

4:45 p.m.-5:50 p.m.

1 stop20h 05m

C$ 1,265

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Fri 25/7

11:30 p.m.-5:00 p.m.

2 stops12h 30m

C$ 1,349

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/6

Showing 1-10 of 11 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 18 hours 7 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 Thursday (45 on average). You will have fewer flight options on Tuesday, 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$ 665
Aer Lingus
Aer Lingus
From C$ 506
Delta
Delta
From C$ 617
Virgin Atlantic
Virgin Atlantic
From C$ 652

What are the cheapest airlines that fly to Portsmouth?

The cheapest airlines flying from Toronto to Portsmouth are Aer Lingus, Delta and Virgin Atlantic.

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 June 2025.
See what other customers who have flown with Delta,KLM, andAer 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.
Delta
8.0
Very good
7,964 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,964 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.1
Good
1,131 reviews
Delta
8.0
Very good
7,964 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
7,067 reviews
Delta
8.0
Very good
7,964 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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, PLAY 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$ 563, however they can be found for as little as C$ 118.

  • 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 45 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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