Find flights
Airlines

C$ 725+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
21 déc. — 28 déc.1
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 21 novembre 2025.

Round-trip from

C$ 779

One-way from

C$ 725

Popular in

December

Cheapest in

February

Average price

C$ 846
Virgin Atlantic
  • Virgin Atlantic
  • 18/2-25/2
  • 1 total stop
  • 24h 45m total
  • Toronto to London
Search Deals
3/1
  • 3/1
  • 3 total stops
  • 40h 50m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 21 novembre 2025.

mar. 9/125:50 p.m.YYZ - SOU
1 stop9h 20mDelta
mer. 18/29:25 a.m.SOU - YYZ
2 stops36h 55mDelta
Deal found 19/11C$ 1,080
mar. 9/125:50 p.m.YYZ - SOU
1 stop9h 20mDelta
dim. 15/25:45 p.m.SOU - YYZ
2 stops30h 23mDelta
Deal found 19/11C$ 1,131
mer. 10/126:00 a.m.YYZ - SOU
2 stops30h 25mDelta
dim. 15/25:45 p.m.SOU - YYZ
2 stops34h 11mDelta
Deal found 19/11C$ 1,165
mar. 9/125:50 p.m.YYZ - SOU
1 stop9h 20mDelta
jeu. 12/29:00 a.m.SOU - YYZ
2 stops15h 08mDelta
Deal found 19/11C$ 1,182
mer. 10/126:00 p.m.YYZ - SOU
2 stops18h 25mDelta
jeu. 12/29:00 a.m.SOU - YYZ
2 stops15h 08mDelta
Deal found 19/11C$ 1,216
dim. 14/126:05 a.m.YYZ - SOU
2 stops21h 05mDelta
mer. 18/29:25 a.m.SOU - YYZ
2 stops18h 17mDelta
Deal found 19/11C$ 1,239
mer. 10/125:25 p.m.YYZ - SOU
1 stop10h 20mBritish Airways
lun. 16/29:30 a.m.SOU - YYZ
1 stop11h 25mBritish Airways
Deal found 19/11C$ 1,241
mer. 10/125:25 p.m.YYZ - SOU
1 stop10h 20mBritish Airways
dim. 15/28:10 p.m.SOU - YYZ
1 stop24h 45mBritish Airways
Deal found 19/11C$ 1,252
mer. 10/125:50 p.m.YYZ - SOU
1 stop9h 30mDelta
mar. 17/25:30 p.m.SOU - YYZ
2 stops28h 50mDelta
Deal found 19/11C$ 1,255
dim. 23/116:00 a.m.YYZ - SOU
2 stops21h 10mDelta
mer. 3/128:40 a.m.SOU - YYZ
1 stop12h 00mDelta
Deal found 20/11C$ 1,256
dim. 23/116:05 p.m.YYZ - SOU
2 stops33h 05mDelta
mar. 2/125:30 p.m.SOU - YYZ
2 stops28h 38mDelta
Deal found 20/11C$ 1,290

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 21 novembre 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

mer. 21/1

6:00 a.m.-8:25 a.m.

2 stops21h 25m

Southampton Eastleigh

dim. 25/1

5:45 p.m.-4:12 p.m.

2 stops27h 27m

C$ 948

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mer. 18/2

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

1 stop9h 35m

Southampton Eastleigh

sam. 28/2

9:25 a.m.-10:42 p.m.

2 stops18h 17m

C$ 950

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

sam. 9/5

11:55 p.m.-7:30 p.m.

1 stop14h 35m

Southampton Eastleigh

ven. 22/5

8:00 a.m.-7:05 p.m.

3 stops40h 05m

C$ 1,082

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

jeu. 11/12

6:00 a.m.-8:05 a.m.

2 stops21h 05m

Southampton Eastleigh

mer. 18/2

9:25 a.m.-5:20 p.m.

2 stops36h 55m

C$ 1,114

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mer. 10/12

6:00 a.m.-5:25 p.m.

2 stops30h 25m

Southampton Eastleigh

mer. 18/2

9:25 a.m.-10:56 p.m.

2 stops18h 31m

C$ 1,114

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mar. 9/12

12:13 p.m.-8:10 a.m.

2 stops14h 57m

Southampton Eastleigh

mer. 18/2

9:25 a.m.-10:56 p.m.

2 stops18h 31m

C$ 1,114

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

jeu. 11/12

6:00 a.m.-8:05 a.m.

2 stops21h 05m

Southampton Eastleigh

mar. 17/2

5:30 p.m.-10:56 p.m.

2 stops34h 26m

C$ 1,114

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

dim. 12/4

6:15 p.m.-4:50 p.m.

2 stops17h 35m

Southampton Eastleigh

jeu. 30/4

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

2 stops17h 00m

C$ 1,130

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mar. 9/12

5:50 p.m.-8:10 a.m.

1 stop9h 20m

Southampton Eastleigh

sam. 14/2

9:25 a.m.-7:08 p.m.

2 stops14h 43m

C$ 1,131

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mar. 9/12

5:50 p.m.-8:10 a.m.

1 stop9h 20m

Southampton Eastleigh

dim. 15/2

5:45 p.m.-7:08 p.m.

2 stops30h 23m

C$ 1,131

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/11

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 17 hours 45 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 Wednesday (38 on average). You will have fewer flight options on Tuesday, 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$ 1,054
Aer Lingus
Aer Lingus
From C$ 735
Delta
Delta
From C$ 868

What are the cheapest airlines that fly to Portsmouth?

The cheapest airlines flying from Toronto to Portsmouth are Aer Lingus, Delta 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 21 novembre 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
1,416 reviews
Check prices

Overall

7.7

Entertainment

7.1

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

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
1,416 reviews
KLM
7.7
Good
1,416 reviews
Check prices

Overall

7.7

Entertainment

7.1

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

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
1,377 reviews
KLM
7.7
Good
1,416 reviews
Check prices

Overall

7.7

Entertainment

7.1

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

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$ 881, however they can be found for as little as C$ 176.

  • 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

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
Prem Econ 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.