Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Casper to London from £656

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Casper to London departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Casper to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
13:23 - 12:20
CPR
-
LHR
15h 57m
1 stop
United Airlines Logo
09:30 - 12:45
LHR
-
CPR
34h 15m
2 stops
£656United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
15:15 - 12:20
CPR
-
LHR
14h 05m
1 stop
United Airlines Logo
09:30 - 12:45
LHR
-
CPR
34h 15m
2 stops
£657United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
08:45 - 08:20
CPR
-
LHR
16h 35m
2 stops
United Airlines Logo
07:30 - 17:31
LHR
-
CPR
17h 01m
2 stops
£660United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
08:45 - 08:20
CPR
-
LHR
16h 35m
2 stops
United Airlines Logo
07:30 - 17:31
LHR
-
CPR
17h 01m
2 stops
£661United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
13:23 - 10:40
CPR
-
LHR
14h 17m
2 stops
United Airlines Logo
07:30 - 19:14
LHR
-
CPR
18h 44m
2 stops
£662United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
15:15 - 12:20
CPR
-
LHR
14h 05m
1 stop
United Airlines Logo
11:25 - 21:58
LHR
-
CPR
17h 33m
1 stop
£670United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
15:15 - 12:20
CPR
-
LHR
14h 05m
1 stop
United Airlines Logo
11:25 - 21:58
LHR
-
CPR
17h 33m
1 stop
£671United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
15:15 - 09:40
CPR
-
LHR
11h 25m
1 stop
United Airlines Logo
14:50 - 21:58
LHR
-
CPR
14h 08m
1 stop
£672United Airlines
Wed, 5 Aug - Wed, 9 Sep
United Airlines Logo
05:15 - 09:40
CPR
-
LHR
21h 25m
1 stop
United Airlines Logo
07:30 - 17:31
LHR
-
CPR
17h 01m
2 stops
£694United Airlines
Fri, 21 Aug - Tue, 25 Aug
United Airlines Logo
13:26 - 09:40
CPR
-
LHR
13h 14m
1 stop
United Airlines Logo
09:30 - 19:14
LHR
-
CPR
16h 44m
2 stops
£695United Airlines
Fri, 21 Aug - Tue, 25 Aug

United Airlines flights from Casper to London

Our best United Airlines deals on Casper to London flight tickets
United Airlines
5 Aug
CPR13:23Casper Natrona County
15h 57m
1 stop
LHR12:20London Heathrow
9 Sept
LHR09:30London Heathrow
34h 15m
2 stops
CPR12:45Casper Natrona County
£656
United Airlines
5 Aug
CPR15:15Casper Natrona County
14h 05m
1 stop
LHR12:20London Heathrow
9 Sept
LHR09:30London Heathrow
34h 15m
2 stops
CPR12:45Casper Natrona County
£657
United Airlines
5 Aug
CPR08:45Casper Natrona County
16h 35m
2 stops
LHR08:20London Heathrow
9 Sept
LHR07:30London Heathrow
17h 01m
2 stops
CPR17:31Casper Natrona County
£660

momondo Fare Finder

 
Customise your flight search to find flights from Casper to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Casper to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

13:23-12:20

1 stop15h 57m

London Heathrow

Wed 9/9

09:30-12:45

2 stops34h 15m

£656

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

15:15-12:20

1 stop14h 05m

London Heathrow

Wed 9/9

09:30-12:45

2 stops34h 15m

£657

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

08:45-08:20

2 stops16h 35m

London Heathrow

Wed 9/9

07:30-17:31

2 stops17h 01m

£660

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

08:45-08:20

2 stops16h 35m

London Heathrow

Wed 9/9

07:30-17:31

2 stops17h 01m

£661

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

13:23-10:40

2 stops14h 17m

London Heathrow

Wed 9/9

07:30-19:14

2 stops18h 44m

£662

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

15:15-12:20

1 stop14h 05m

London Heathrow

Wed 9/9

11:25-21:58

1 stop17h 33m

£670

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

15:15-12:20

1 stop14h 05m

London Heathrow

Wed 9/9

11:25-21:58

1 stop17h 33m

£671
Fastest return journey

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Wed 5/8

15:15-09:40

1 stop11h 25m

London Heathrow

Wed 9/9

14:50-21:58

1 stop14h 08m

£672

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Fri 21/8

05:15-09:40

1 stop21h 25m

London Heathrow

Tue 25/8

07:30-17:31

2 stops17h 01m

£694

CasperLondon

CPR - LHR

CPRLHR

Casper Natrona County

Fri 21/8

13:26-09:40

1 stop13h 14m

London Heathrow

Tue 25/8

09:30-19:14

2 stops16h 44m

£695

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Casper to London

Are you open to changing your travel dates? Check out the ideal times to fly from Casper to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Casper to London (CPR to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Casper to London

Fastest flight time

15h 57m

Direct flights

None
The fastest flight from Casper to London takes 15h 57m
There are no direct flights from Casper to London. There are no popular flight routes from Casper to London.
Search flight deals

  • How far is Casper Natrona County to London by plane?

    Casper Natrona County and London are 4565.0 mi apart from one another. By plane, this route typically takes 15h 57m.

  • When did momondo last update prices for flights from Casper Natrona County Airport to London?

    Prices for flights from Casper Natrona County Airport to London are updated daily.

  • How old do you have to be to fly from Casper Natrona County Airport to London?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Casper to London?

    Price Alerts will notify you by email when the price for flights to London from Casper decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Casper to London with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Ipswich
Wembley
Canterbury
Ilford
Guildford
Hayes
Chelmsford
Dover
Folkestone
Ramsgate
Chichester
Bedford
Worthing

Why use momondo?

Why should I use momondo to find a flight deal from Casper to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Casper.

Can I find flights from Casper to London with flexible booking policies on momondo?

Flights from Casper to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Casper to London?

momondo provides multiple filters to help you find the best flight to London from Casper. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Casper to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Casper. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 21/4
Tue 28/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport