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$623+ Cheap flights from Oshkosh, WI to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Oshkosh to Heathrow

Keep the following information in mind while searching for Oshkosh to Heathrow flight deals. Data was last updated September 15, 2025.

Round-trip from

$623
(Delta)

Popular in

December

Cheapest in

January

Average price

$774
From Oshkosh to London Heathrow
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($118 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Oshkosh to Heathrow

Cheapest flights from Oshkosh to Heathrow
Explore the most affordable flight options available from Oshkosh to Heathrow. 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.
Wed 10/294:17 pmATW - LHR
1 stop9h 48mDelta
Wed 11/56:20 amLHR - ATW
2 stops16h 27mDelta
Deal found 9/14$623
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.
Wed 10/2912:05 pmATW - LHR
1 stop14h 00mKLM
Wed 11/58:55 amLHR - ATW
1 stop18h 40mKLM
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.
Thu 10/164:17 pmATW - LHR
1 stop14h 53mDelta
Thu 10/236:15 amLHR - ATW
2 stops21h 27mDelta
Deal found 9/14$713
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.
Thu 10/95:41 amATW - LHR
1 stop19h 34mDelta
Tue 10/148:40 amLHR - ATW
2 stops18h 35mDelta
Deal found 9/13$714
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:41 amATW - LHR
1 stop19h 34mVirgin Atlantic
Tue 10/141:05 pmLHR - ATW
1 stop14h 37mVirgin Atlantic
Deal found 9/13$721
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.
Fri 10/35:35 amATW - LHR
1 stop19h 10mDelta
Fri 10/174:50 pmLHR - ATW
2 stops23h 41mDelta
Deal found 9/14$725
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/143:48 pmATW - LHR
1 stop10h 27mAmerican Airlines
Fri 1/911:45 amLHR - ATW
1 stop16h 05mAmerican Airlines
Deal found 9/15$733
This Virgin Atlantic deal was found by Cheapflights users on 9/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:24 amATW - LHR
2 stops18h 26mVirgin Atlantic
Fri 1/99:40 amLHR - ATW
2 stops17h 59mVirgin Atlantic
Deal found 9/15$746
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/33:45 pmATW - LHR
1 stop11h 20mAmerican Airlines
Fri 10/171:10 pmLHR - ATW
1 stop16h 33mAmerican Airlines
Deal found 9/14$768

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh to Heathrow 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 Oshkosh to London Heathrow Airport that are best for you.

Fly from

Oshkosh

Fly to

Heathrow

Route

Depart

Return

Price

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 10/29

4:17 pm-7:05 am

1 stop9h 48m

London Heathrow

Wed 11/5

6:20 am-4:47 pm

2 stops16h 27m

$623

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 10/29

12:05 pm-7:05 am

1 stop14h 00m

London Heathrow

Wed 11/5

8:55 am-9:35 pm

1 stop18h 40m

$631

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sat 2/14

11:25 am-6:55 am

1 stop13h 30m

London Heathrow

Sat 2/21

9:55 am-9:52 pm

1 stop17h 57m

$703

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 10/16

5:41 am-6:45 am

1 stop19h 04m

London Heathrow

Thu 10/23

6:15 am-9:42 pm

2 stops21h 27m

$713

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 10/9

5:35 pm-1:30 pm

2 stops13h 55m

London Heathrow

Tue 10/14

9:55 am-9:42 pm

2 stops17h 47m

$719

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 10/9

5:41 am-7:15 am

1 stop19h 34m

London Heathrow

Tue 10/14

1:05 pm-9:42 pm

1 stop14h 37m

$721

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 10/3

5:35 am-6:45 am

1 stop19h 10m

London Heathrow

Fri 10/17

4:50 pm-10:31 am

2 stops23h 41m

$725

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 12/14

11:13 am-9:00 am

2 stops15h 47m

London Heathrow

Fri 1/9

10:45 am-10:02 pm

1 stop17h 17m

$746

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 12/26

5:23 pm-5:45 pm

2 stops18h 22m

$646

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 12/26

5:25 am-6:25 am

1 stop19h 00m

$759

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 13 results
1
2

Best time to book a flight from Oshkosh to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Oshkosh 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 Oshkosh to London Heathrow Airport

What is the cheapest month to book a flight from Oshkosh to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Oshkosh to London Heathrow Airport (average of $661). Flying from Oshkosh to London Heathrow Airport 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.

What is the cheapest time of day to fly from OS9 to LHR?

Find hourly flight availability from Oshkosh to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Oshkosh to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Oshkosh to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

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
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

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
8,929 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

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 Oshkosh to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oshkosh to London Heathrow Airport?

    Delta, KLM, and American Airlines can get you from Oshkosh to London Heathrow Airport in just under 9h 48m. Your travel time can differ by up to 4h 12m. The distance between Oshkosh and London Heathrow Airport is about 3858 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Oshkosh to London Heathrow Airport one-way?

    $646 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Virgin Atlantic and United Airlines, with prices starting from $759 and $2,996, respectively.

  • Can I find deals for flights from Oshkosh to Heathrow that include hotel bookings?

    Yes. In addition to deals on Oshkosh to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oshkosh to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oshkosh to Heathrow.

  • Can I find deals for business class flights from Oshkosh to Heathrow?

    Yes. Cheapflights offers flight deals from Oshkosh to Heathrow 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 Oshkosh to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Oshkosh to London Heathrow Airport (average of $661). Flying from Oshkosh to London Heathrow Airport 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

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.

Alternative routes for Oshkosh to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Oshkosh to Heathrow

Discover the top 5 airlines that operate flights from Oshkosh to Heathrow. 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
British AirwaysCheapest$650Average$819FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$695Average$888FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$699Average$1,101FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$703Average$922FlexibilityNo cancel feeOn-time72%
DeltaCheapest$736Average$988FlexibilityNo cancel feeOn-timeN/A

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