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$398+ Cheap flights from Oshkosh, WI to Heathrow (LHR)

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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$638
(United Airlines)

One-way from

$398
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,235
From Oshkosh to London Heathrow
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One-way flight from Oshkosh to London Heathrow
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Highest demand for flights based on searches. 9% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. 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 9/93:45 pmATW - LHR
1 stop14h 00mUnited Airlines
Thu 9/256:50 amLHR - ATW
2 stops15h 59mUnited Airlines
Deal found 7/31$638
This Delta deal was found by Cheapflights users on 7/31. 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 9/95:34 amATW - LHR
1 stop19h 11mDelta
Thu 9/256:15 amLHR - ATW
2 stops21h 20mDelta
Deal found 7/31$641
This KLM deal was found by Cheapflights users on 7/31. 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.
Tue 9/95:34 amATW - LHR
1 stop19h 11mKLM
Thu 9/2511:45 amLHR - ATW
1 stop14h 57mKLM
Deal found 7/31$649
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/106:35 pmATW - LHR
1 stop9h 55mAmerican Airlines
Thu 8/219:15 amLHR - ATW
1 stop14h 50mAmerican Airlines
Deal found 7/30$650
This British Airways deal was found by Cheapflights users on 7/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:18 pmATW - LHR
1 stop10h 47mMultiple Airlines
Fri 10/1711:05 amLHR - ATW
1 stop12h 36mMultiple Airlines
Deal found 7/31$699
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:35 pmATW - LHR
2 stops35h 10mLufthansa
Sat 1/37:30 pmLHR - ATW
2 stops27h 28mLufthansa
Deal found 7/30$1,242

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 July 31, 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

Tue 9/9

3:45 pm-11:45 am

1 stop14h 00m

London Heathrow

Thu 9/25

6:50 am-4:49 pm

2 stops15h 59m

$638

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Tue 9/9

5:34 am-6:45 am

1 stop19h 11m

London Heathrow

Thu 9/25

6:15 am-9:35 pm

2 stops21h 20m

$641

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Tue 9/9

5:34 am-6:45 am

1 stop19h 11m

London Heathrow

Thu 9/25

11:45 am-8:42 pm

1 stop14h 57m

$649

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 8/10

6:35 pm-10:30 am

1 stop9h 55m

London Heathrow

Thu 8/21

9:15 am-6:05 pm

1 stop14h 50m

$650

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 9/3

4:12 pm-1:30 pm

2 stops15h 18m

London Heathrow

Wed 9/10

12:45 pm-9:32 pm

1 stop14h 47m

$656

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 10/3

6:18 pm-11:05 am

1 stop10h 47m

London Heathrow

Fri 10/17

11:05 am-5:41 pm

1 stop12h 36m

$699

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 12/26

5:35 pm-10:45 am

2 stops35h 10m

London Heathrow

Sat 1/3

7:30 pm-4:58 pm

2 stops27h 28m

$1,242

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 11/28

7:30 am-12:50 pm

2 stops47h 20m

$398

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 12/3

3:42 pm-7:55 am

1 stop10h 13m

$399

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 11/30

7:00 am-6:25 am

2 stops17h 25m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 July 31, 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 July 31, 2025.
Get a feel of what it's like to fly with Delta, KLM, and United 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.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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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 6 airlines flying from Oshkosh to Heathrow

Discover the top 6 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$555Average$738FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$613Average$1,005FlexibilityNo cancel feeOn-time71%
DeltaCheapest$613Average$953FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$646Average$875FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$693Average$825FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$703Average$927FlexibilityNo cancel feeOn-time72%

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