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C$ 537+ 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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
31 Jan — 7 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

Best flights to Portsmouth
Discover carefully curated flight deals to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 1 January 2026.

Thu 22/15:50 p.m.YYZ - SOU
1 stop9h 35mDelta
Tue 27/19:25 a.m.SOU - YYZ
1 stop11h 15mDelta
Deal found 1/1C$ 828
Thu 22/19:15 p.m.YYZ - SOU
1 stop14h 50mDelta
Sun 25/15:45 p.m.SOU - YYZ
1 stop26h 55mDelta
Deal found 1/1C$ 828
Thu 22/19:15 p.m.YYZ - SOU
1 stop14h 50mDelta
Mon 26/15:35 p.m.SOU - YYZ
1 stop27h 05mDelta
Deal found 1/1C$ 828
Sun 7/65:30 p.m.YTZ - SOU
2 stops21h 00mMultiple Airlines
Sun 21/69:10 a.m.SOU - YTZ
2 stops41h 21mMultiple Airlines
Deal found 31/12C$ 1,881
Mon 9/36:50 p.m.YYZ - SOU
1 stop18h 10mDelta
Sun 12/45:20 p.m.SOU - YYZ
1 stop31h 35mDelta
Deal found 30/12C$ 847
Mon 9/36:50 p.m.YYZ - SOU
1 stop18h 10mDelta
Tue 14/45:20 p.m.SOU - YYZ
1 stop31h 35mDelta
Deal found 30/12C$ 847
Mon 26/16:00 a.m.YYZ - SOU
2 stops21h 50mDelta
Fri 30/15:35 p.m.SOU - YYZ
1 stop30h 40mDelta
Deal found 30/12C$ 863
Mon 19/110:05 a.m.YYZ - SOU
2 stops17h 45mDelta
Sat 24/19:25 a.m.SOU - YYZ
1 stop11h 15mDelta
Deal found 1/1C$ 866
Tue 20/16:13 p.m.YYZ - SOU
2 stops17h 52mDelta
Fri 23/15:35 p.m.SOU - YYZ
1 stop27h 05mDelta
Deal found 1/1C$ 866
Mon 19/110:05 a.m.YYZ - SOU
2 stops17h 45mDelta
Tue 27/19:25 a.m.SOU - YYZ
1 stop14h 50mDelta
Deal found 1/1C$ 866
Wed 21/112:12 p.m.YYZ - SOU
2 stops15h 13mDelta
Sun 25/15:45 p.m.SOU - YYZ
1 stop26h 55mDelta
Deal found 1/1C$ 866

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 1 January 2026.

Round-trip from

C$ 730

One-way from

C$ 537

Popular in

December

Cheapest in

February

Average price

C$ 751
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 19/4-28/4
  • 2 total stops
  • 56h 25m total
  • Toronto to London
Search Deals
24/6
  • 24/6
  • 2 total stops
  • 20h 10m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 1 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

Thu 22/1

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

1 stop9h 35m

Southampton Eastleigh

Tue 27/1

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

1 stop11h 15m

C$ 828

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 22/1

9:15 p.m.-5:05 p.m.

1 stop14h 50m

Southampton Eastleigh

Sun 25/1

5:45 p.m.-3:40 p.m.

1 stop26h 55m

C$ 828

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 22/1

9:15 p.m.-5:05 p.m.

1 stop14h 50m

Southampton Eastleigh

Mon 26/1

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

1 stop27h 05m

C$ 828

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 9/3

6:50 p.m.-5:00 p.m.

1 stop18h 10m

Southampton Eastleigh

Sun 12/4

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

1 stop31h 35m

C$ 847

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 9/3

6:50 p.m.-5:00 p.m.

1 stop18h 10m

Southampton Eastleigh

Tue 14/4

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

1 stop31h 35m

C$ 847

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$ 863

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 19/1

10:05 a.m.-8:50 a.m.

2 stops17h 45m

Southampton Eastleigh

Sat 24/1

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

1 stop11h 15m

C$ 866

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 20/1

6:13 p.m.-5:05 p.m.

2 stops17h 52m

Southampton Eastleigh

Fri 23/1

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

1 stop27h 05m

C$ 866

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 19/1

10:05 a.m.-8:50 a.m.

2 stops17h 45m

Southampton Eastleigh

Tue 27/1

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

1 stop14h 50m

C$ 866

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 21/1

12:12 p.m.-8:25 a.m.

2 stops15h 13m

Southampton Eastleigh

Sun 25/1

5:45 p.m.-3:40 p.m.

1 stop26h 55m

C$ 866

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/12

Showing 1-10 of 15 results
1
2

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 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.

Weekly flight availability to Portsmouth

The most flights from Toronto to Portsmouth are scheduled on a Wednesday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 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$ 1,030
Aer Lingus
Aer Lingus
From C$ 1,019
Delta
Delta
From C$ 847

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 1 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
1,435 reviews
Check prices

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.2

Boarding

7.7

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
1,435 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.2

Boarding

7.7

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
1,418 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.2

Boarding

7.7

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$ 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 (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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