Find flights
Airlines

C$ 505+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

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 29 January 2026.

Sun 1/29:15 p.m.
YYZ
-
SOU
1 stop30h 35m
Delta
Mon 9/25:35 p.m.
SOU
-
YYZ
1 stop30h 40m
Delta
Deal found 26/1C$ 820
Mon 13/44:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Mon 20/49:05 a.m.
SOU
-
YYZ
1 stop15h 50m
Delta
Deal found 28/1C$ 844
Fri 30/16:00 a.m.
YYZ
-
SOU
2 stops21h 45m
Delta
Tue 3/25:35 p.m.
SOU
-
YYZ
1 stop27h 05m
Delta
Deal found 26/1C$ 859
Sun 1/36:11 p.m.
YYZ
-
SOU
2 stops33h 09m
Delta
Thu 5/36:05 p.m.
SOU
-
YYZ
1 stop26h 35m
Delta
Deal found 28/1C$ 869
Wed 15/46:00 a.m.
YYZ
-
SOU
2 stops29h 50m
Delta
Wed 22/49:05 a.m.
SOU
-
YYZ
1 stop15h 50m
Delta
Deal found 28/1C$ 882
Thu 29/16:00 a.m.
YYZ
-
SOU
2 stops21h 25m
Delta
Sat 7/29:25 a.m.
SOU
-
YYZ
2 stops14h 43m
Delta
Deal found 26/1C$ 892
Thu 29/19:15 p.m.
YYZ
-
SOU
1 stop30h 30m
KLM
Sat 7/29:25 a.m.
SOU
-
YYZ
1 stop11h 15m
KLM
Deal found 26/1C$ 893
Tue 14/44:45 p.m.
YYZ
-
SOU
1 stop10h 50m
Delta
Tue 21/45:20 p.m.
SOU
-
YYZ
1 stop31h 35m
Delta
Deal found 28/1C$ 904
Wed 15/46:00 a.m.
YYZ
-
SOU
2 stops29h 50m
Delta
Tue 21/45:20 p.m.
SOU
-
YYZ
2 stops27h 00m
Delta
Deal found 28/1C$ 915
Tue 17/36:50 p.m.
YYZ
-
SOU
1 stop9h 30m
Delta
Sun 29/35:20 p.m.
SOU
-
YYZ
2 stops28h 57m
Delta
Deal found 28/1C$ 922
Thu 29/19:15 p.m.
YYZ
-
SOU
1 stop30h 30m
KLM
Fri 6/25:35 p.m.
SOU
-
YYZ
2 stops27h 37m
KLM
Deal found 26/1C$ 933
Sun 15/39:30 a.m.
YTZ
-
SOU
3 stops28h 00m
Multiple Airlines
Sun 22/312:15 p.m.
SOU
-
YTZ
3 stops33h 35m
Multiple Airlines
Deal found 28/1C$ 1,417

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 29 January 2026.

Round-trip from

C$ 694

One-way from

C$ 505

Popular in

December

Cheapest in

February

Average price

C$ 743
24/2-4/3
  • 24/2-4/3
  • 4 total stops
  • 35h 50m total
  • Toronto to London
Search Deals
10/7
  • 10/7
  • 2 total stops
  • 36h 55m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 42 potential increase over avg. RT price).
Search Deals
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
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 29 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 16/4

4:45 p.m.-8:35 a.m.

1 stop10h 50m

Southampton Eastleigh

Wed 22/4

9:05 a.m.-7:55 p.m.

1 stop15h 50m

C$ 844

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 1/3

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

2 stops33h 09m

Southampton Eastleigh

Thu 5/3

6:05 p.m.-3:40 p.m.

1 stop26h 35m

C$ 869

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 15/4

6:00 a.m.-4:50 p.m.

2 stops29h 50m

Southampton Eastleigh

Wed 22/4

9:05 a.m.-7:55 p.m.

1 stop15h 50m

C$ 882

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 15/4

4:45 p.m.-8:35 a.m.

1 stop10h 50m

Southampton Eastleigh

Thu 23/4

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

1 stop31h 35m

C$ 904

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 14/4

4:45 p.m.-8:35 a.m.

1 stop10h 50m

Southampton Eastleigh

Wed 22/4

9:05 a.m.-7:55 p.m.

1 stop15h 50m

C$ 904

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 15/4

9:55 p.m.-8:35 a.m.

1 stop29h 40m

Southampton Eastleigh

Mon 20/4

9:05 a.m.-7:55 p.m.

1 stop15h 50m

C$ 904

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 16/4

4:45 p.m.-8:35 a.m.

1 stop10h 50m

Southampton Eastleigh

Sun 19/4

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

1 stop31h 35m

C$ 904

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 17/3

6:50 p.m.-8:20 a.m.

1 stop9h 30m

Southampton Eastleigh

Sun 29/3

5:20 p.m.-5:17 p.m.

2 stops28h 57m

C$ 922

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Thu 19/3

10:15 p.m.-5:00 p.m.

1 stop14h 45m

Southampton Eastleigh

Sun 29/3

5:20 p.m.-10:39 p.m.

2 stops34h 19m

C$ 922

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 15/4

6:00 a.m.-4:50 p.m.

2 stops29h 50m

Southampton Eastleigh

Sun 19/4

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

1 stop31h 35m

C$ 942

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 21 results
1
2
3

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 47 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 (32 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (16 on average).

What are the most popular airlines that fly to Portsmouth?

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

KLM
KLM
From C$ 1,018
Aer Lingus
Aer Lingus
From C$ 1,008

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 29 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
1,443 reviews
Check prices

Boarding

7.8

Food

7.3

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Boarding

7.8

Food

7.3

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Boarding

7.8

Food

7.3

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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$ 154, however they can be found for as little as C$ 154.

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Portsmouth by cabin class

Find flights to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Premium Economy Class
Economy Class

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Portsmouth?

When you search for this flight to Portsmouth, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets to Portsmouth?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Portsmouth.

Can Cheapflights find flights to Portsmouth with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Portsmouth flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Portsmouth become cheaper?

Yes! Start tracking prices for Portsmouth flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.