Featured airlines
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Origin airport | Swansea |
Destination airport | Heathrow |
Distance | 155 mi |
Swansea to London Flights
The cheapest times to fly from Swansea to London
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Swansea to London are during the month of . You can find some of the cheapest flights from Swansea to London with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Swansea to London
Sunday is one of the best days to book for cheap flights from Swansea to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Swansea to London
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Swansea to London in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Swansea to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Swansea to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently asked questions
Explore a world of travel with Expedia
Flights
- Flights from New York (NYC) to London (LON)
- Flights from Nashville (BNA) to London (LGW)
- Flights from Orlando (MCO) to London (LGW)
- Flights from Atlanta (ATL) to London (LGW)
- Flights from Newark Liberty Intl. Airport (EWR) to London (LGW)
- Flights from Tampa (TPA) to London (LGW)
- Flights from Port of Spain (POS) to London (LGW)
- Flights from Banjul (BJL) to London (LGW)
- Flights from Philadelphia (PHL) to London (LGW)
- Flights from Toronto (YYZ) to London (LGW)
- Flights from Las Vegas (LAS) to London (LGW)
- Flights from Dallas (DFW) to London (LGW)
- Flights from Miami (MIA) to London (LHR)
- Flights from San Diego (SAN) to London (LHR)
- Flights from Los Angeles (LAX) to London (LHR)
- Flights from New York (LGA) to London (LHR)
- Flights from Denver (DEN) to London (LHR)
- Flights from Newark Liberty Intl. Airport (EWR) to London (LHR)
- Flights from Boston (BOS) to London (LHR)
- Flights from Chicago (ORD) to London (LHR)
- Flights from Washington (IAD) to London (LHR)
- Flights from New York (JFK) to London (LHR)
- Flights from Washington (DCA) to London (LHR)
- Flights from Fort Lauderdale (FLL) to London (LHR)
- Flights from London (LHR) to Anglesey (VLY)
- Flights from Accra (ACC) to Manchester (MAN)
- Flights from Lahore (LHE) to Manchester (MAN)
- Flights from Chicago (ORD) to Manchester (MAN)
- Flights from London (LHR) to Manchester (MAN)
- Flights from New York (JFK) to Manchester (MAN)
- Flights from Harare (HRE) to Manchester (MAN)
- Flights from San Francisco (SFO) to Manchester (MAN)
- Flights from Lagos (LOS) to Manchester (MAN)
- Flights from Boston (BOS) to Manchester (MAN)
- Flights from Houston (IAH) to Manchester (MAN)
- Flights from Los Angeles (LAX) to Manchester (MAN)
- Flights from Harare (HRE) to Birmingham (BHX)
- Flights from London (LON) to Paris (PAR)
- Flights from London (LON) to New York (NYC)
- Flights from Los Angeles (LAX) to Glasgow (GLA)
- Flights from Boston (BOS) to Glasgow (GLA)
- Flights from London (LHR) to Glasgow (GLA)
- Flights to London
- Flights to Bath
- Flights to Newcastle-upon-Tyne
- Flights to Cambridge
- Flights to Manchester
- Flights to Glasgow
- Flights to Blackpool
- Flights to York
- Flights to Brighton
- Flights to Edinburgh
- Flights to Chester
- Flights to Bristol
- Flights to Birmingham
- Flights to Belfast
- Flights to Inverness
- Flights to Leeds
- Flights to Southampton
- Flights to Cardiff
- Flights to Oxford
- Flights to Liverpool
- British Airways Los Angeles (LAX) to London (LHR) flights
- British Airways Newark Liberty Intl. Airport (EWR) to London (LHR) flights
- British Airways Boston (BOS) to London (LHR) flights
- British Airways Denver (DEN) to London (LHR) flights
- British Airways Chicago (ORD) to London (LHR) flights
- British Airways Miami (MIA) to London (LHR) flights
- Flights from Bristol Intl.
- Flights from Exeter Intl.
- Flights from Oxford
- Flights from Bournemouth Intl.
- Flights from Newquay Cornwall
- Flights from Birmingham
- Flights from Coventry
- Flights from Southampton
- Flights from Hawarden
- Flights from Cardiff Intl.