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Heathrow

$340+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This KLM deal was found by Cheapflights users on 10/28. 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 11/1812:20 pmATW - LHR
1 stop12h 45mKLM
Tue 12/212:30 pmLHR - ATW
1 stop15h 34mKLM
Deal found 10/28$599
This Delta deal was found by Cheapflights users on 10/28. 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 11/187:00 amATW - LHR
2 stops19h 05mDelta
Tue 12/28:00 pmLHR - ATW
2 stops20h 33mDelta
Deal found 10/28$604
This KLM deal was found by Cheapflights users on 10/28. 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.
Fri 11/712:05 pmATW - LHR
1 stop13h 00mMultiple Airlines
Wed 11/196:20 amLHR - ATW
2 stops15h 18mMultiple Airlines
Deal found 10/28$641
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:01 amATW - LHR
1 stop19h 44mDelta
Wed 11/196:20 amLHR - ATW
2 stops20h 47mDelta
Deal found 10/30$642
This KLM deal was found by Cheapflights users on 10/28. 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.
Fri 11/711:11 amATW - LHR
2 stops13h 39mAir France
Wed 11/196:20 amLHR - ATW
2 stops15h 18mAir France
Deal found 10/28$646
This Delta deal was found by Cheapflights users on 10/29. 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 11/511:11 amATW - LHR
1 stop15h 34mDelta
Sun 11/98:55 amLHR - ATW
1 stop19h 20mDelta
Deal found 10/29$649
This KLM deal was found by Cheapflights users on 10/28. 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 11/511:11 amATW - LHR
2 stops14h 39mMultiple Airlines
Sun 11/911:05 amLHR - ATW
1 stop16h 02mMultiple Airlines
Deal found 10/28$654
This Air France deal was found by Cheapflights users on 10/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:31 amATW - LHR
1 stop24h 09mMultiple Airlines
Fri 12/193:50 pmLHR - ATW
1 stop35h 51mMultiple Airlines
Deal found 10/28$660
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/86:21 pmATW - LHR
1 stop29h 34mUnited Airlines
Sun 11/236:50 amLHR - ATW
2 stops18h 29mUnited Airlines
Deal found 10/28$684
This KLM deal was found by Cheapflights users on 10/28. 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.
Sat 11/811:11 amATW - LHR
2 stops14h 39mMultiple Airlines
Sun 11/236:30 amLHR - ATW
2 stops15h 53mMultiple Airlines
Deal found 10/28$697
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/73:48 pmATW - LHR
1 stop12h 37mAmerican Airlines
Wed 11/192:45 pmLHR - ATW
1 stop14h 40mAmerican Airlines
Deal found 10/30$708

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$599
(KLM)

One-way from

$340
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$799
Provider with most accurate pricing for Appleton Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Appleton Intl-London (LON) flights.
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From Oshkosh to London Heathrow
Search Deals
One-way flight from Oshkosh to London Heathrow
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 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 11/18

12:20 pm-7:05 am

1 stop12h 45m

London Heathrow

Tue 12/2

12:30 pm-10:04 pm

1 stop15h 34m

$599

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Tue 11/18

7:00 am-8:05 am

2 stops19h 05m

London Heathrow

Tue 12/2

8:00 pm-10:33 am

2 stops20h 33m

$604

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 12/4

11:13 am-8:45 am

1 stop15h 32m

London Heathrow

Tue 12/9

6:20 am-3:38 pm

2 stops15h 18m

$641

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 12/4

7:00 am-7:05 am

2 stops18h 05m

London Heathrow

Tue 12/9

6:20 am-9:20 pm

2 stops21h 00m

$646

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 12/4

11:13 am-8:45 am

1 stop15h 32m

London Heathrow

Tue 12/9

1:00 pm-8:51 pm

1 stop13h 51m

$649

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 4/1

1:10 pm-6:45 am

1 stop11h 35m

London Heathrow

Wed 4/15

7:25 am-8:58 pm

2 stops19h 33m

$651

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 4/1

1:10 pm-6:45 am

1 stop11h 35m

London Heathrow

Tue 4/14

4:25 pm-8:58 pm

2 stops34h 33m

$653

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 4/1

11:27 am-11:15 am

1 stop17h 48m

London Heathrow

Wed 4/15

1:10 pm-9:34 pm

1 stop14h 24m

$682

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Fri 3/27

2:43 pm-11:20 am

2 stops15h 37m

London Heathrow

Tue 3/31

7:25 am-4:50 pm

2 stops15h 25m

$692

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 4/5

11:27 am-10:30 am

1 stop17h 03m

London Heathrow

Sat 4/18

12:15 pm-9:34 pm

1 stop15h 19m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 12 results
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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, October is the cheapest month in which you can book a flight from Oshkosh to London Heathrow Airport (average of $558). Flying from Oshkosh to London Heathrow Airport in June is currently the most expensive (average of $1,087). 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 October 30, 2025.

When flying from Oshkosh to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the morning.

How much does it cost to fly round-trip from Oshkosh to London Heathrow Airport?

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 October 30, 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
8,998 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,035 reviews
United Airlines
7.4
Good
8,998 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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?

    KLM and Delta can get you from Oshkosh to London Heathrow Airport in just under 12h 45m. Your travel time can differ by up to 6h 20m. 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.

  • 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, October is the cheapest month in which you can book a flight from Oshkosh to London Heathrow Airport (average of $558). Flying from Oshkosh to London Heathrow Airport in June is currently the most expensive (average of $1,087). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$632Average$879FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$650Average$824FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$676Average$897FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$687Average$1,142FlexibilityNo cancel feeOn-time71%
DeltaCheapest$749Average$1,048FlexibilityNo cancel feeOn-timeN/A

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