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$449+ Cheap flights from Rapid City (RAP) to the United Kingdom

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Rapid City to United Kingdom

Keep the following information in mind while searching for Rapid City to United Kingdom flight deals. Data was last updated September 15, 2025.

Round-trip from

$624
(Delta)

One-way from

$449
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$985
From Rapid City to United Kingdom
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One-way flight from Rapid City to United Kingdom
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Highest demand for flights based on searches. 20% potential increase in price ($225 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Rapid City to United Kingdom

Cheapest flights from Rapid City to United Kingdom
Explore the most affordable flight options available from Rapid City to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:33 amRAP - LHR
1 stop19h 37mDelta
Thu 10/238:40 amLHR - RAP
2 stops20h 56mDelta
Deal found 9/14$624
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:05 amRAP - LHR
2 stops20h 55mDelta
Wed 11/56:30 amLHR - RAP
2 stops23h 06mDelta
Deal found 9/14$629
This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:33 amRAP - LHR
1 stop19h 37mKLM
Thu 10/2312:25 pmLHR - RAP
1 stop17h 11mKLM
Deal found 9/14$631
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:27 pmRAP - LCY
2 stops19h 13mDelta
Thu 10/98:40 amLCY - RAP
2 stops20h 56mDelta
Deal found 9/14$673
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 amRAP - LHR
2 stops16h 10mUnited Airlines
Fri 10/106:55 amLHR - RAP
2 stops18h 45mUnited Airlines
Deal found 9/14$702
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:30 amRAP - LHR
1 stop20h 50mUnited Airlines
Thu 10/911:25 amLHR - RAP
1 stop16h 09mUnited Airlines
Deal found 9/14$712
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1110:33 amRAP - LHR
1 stop19h 37mDelta
Tue 10/218:40 amLHR - RAP
2 stops20h 56mDelta
Deal found 9/13$714
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 amRAP - LHR
2 stops16h 10mUnited Airlines
Thu 10/910:00 amLHR - RAP
2 stops17h 34mUnited Airlines
Deal found 9/14$716
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 amRAP - LHR
1 stop18h 10mUnited Airlines
Sat 10/1110:15 amLHR - RAP
2 stops33h 22mUnited Airlines
Deal found 9/14$720
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:30 amRAP - LHR
2 stops15h 45mUnited Airlines
Mon 10/1311:25 amLHR - RAP
1 stop12h 35mUnited Airlines
Deal found 9/14$735
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:30 amRAP - LHR
2 stops15h 05mUnited Airlines
Sat 10/118:00 amLHR - RAP
2 stops17h 40mUnited Airlines
Deal found 9/14$742
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:20 pmRAP - LHR
1 stop11h 20mUnited Airlines
Fri 10/1011:25 amLHR - RAP
1 stop12h 35mUnited Airlines
Deal found 9/14$743

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to United Kingdom 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Rapid City to the United Kingdom that are best for you.

Fly from

Rapid City

Fly to

United Kingdom

Route

Depart

Return

Price

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/29

6:05 am-7:05 am

1 stop19h 00m

London Heathrow

Wed 11/5

8:40 am-10:36 pm

2 stops20h 56m

$624

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 10/12

10:33 am-1:10 pm

1 stop19h 37m

London Heathrow

Thu 10/23

12:25 pm-10:36 pm

1 stop17h 11m

$631

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Tue 9/30

2:27 pm-4:40 pm

2 stops19h 13m

London City

Thu 10/9

8:40 am-10:36 pm

2 stops20h 56m

$673

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/1

3:20 pm-9:40 am

1 stop11h 20m

London Heathrow

Fri 10/10

1:40 pm-10:13 am

2 stops27h 33m

$712

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/30

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Fri 10/10

1:40 pm-10:13 am

2 stops27h 33m

$712

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/1

3:20 pm-9:40 am

1 stop11h 20m

London Heathrow

Thu 10/9

1:40 pm-10:13 am

2 stops27h 33m

$712

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 10/11

10:33 am-1:10 pm

1 stop19h 37m

London Heathrow

Tue 10/21

8:40 am-10:36 pm

2 stops20h 56m

$714

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 10/11

5:50 pm-9:40 am

1 stop32h 50m

London Heathrow

Tue 10/21

2:05 pm-10:13 am

2 stops27h 08m

$714

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/1

8:30 am-7:40 am

2 stops16h 10m

London Heathrow

Sat 10/11

10:15 am-12:37 pm

2 stops33h 22m

$725

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Wed 10/29

8:45 am-9:05 am

3 stops18h 20m

London City

Wed 11/5

6:10 pm-6:43 pm

2 stops31h 33m

$771

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 25 results
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2
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Best time to book a flight from Rapid City to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Rapid City 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 from Rapid City to the United Kingdom
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Rapid City to the United Kingdom, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,931 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,931 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Rapid City to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Rapid City to United Kingdom?

    Located just 9.0 mi from the city center, Rapid City (RAP) is the airport most travelers will use when flying to United Kingdom from Rapid City.

  • How long is the flight from Rapid City to United Kingdom?

    A quick flight from Rapid City to United Kingdom can take about 19h. Delta provides one of the quickest options available for as low as $624. Rapid City and United Kingdom are separated by a distance of 4385 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Rapid City to United Kingdom one-way?

    The cheapest airlines for a one-way flight from Rapid City to United Kingdom are American Airlines ($449), United Airlines ($459), and Delta ($569).

  • Can I find deals for flights from Rapid City to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Rapid City to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to United Kingdom.

  • Can I find deals for business class flights from Rapid City to United Kingdom?

    Yes. Cheapflights offers flight deals from Rapid City to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rapid City to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Rapid City to United Kingdom (average of $661). Flying from Rapid City to United Kingdom in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Rapid City to United Kingdom

Discover the top 2 airlines that operate flights from Rapid City to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$748Average$1,129FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$751Average$933FlexibilityNo cancel feeOn-time71%

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