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Cheap flights from London Heathrow Airport to Oshkosh from £555

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MKE
2 Jan — 9 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Oshkosh

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Oshkosh
Explore the most affordable flight options available from Heathrow to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 December 2025.

Fri 5/1207:40LHR - ATW
2 stops15h 02mMultiple Airlines
Sun 7/1212:30ATW - LHR
1 stop11h 25mMultiple Airlines
Deal found 2/12£5,340

Find flight deals from Heathrow to Oshkosh

Keep the following information in mind while searching for Heathrow to Oshkosh flight deals. Data was last updated 3 December 2025.

Round-trip from

£750

One-way from

£555

Popular in

July

Cheapest in

April

Average price

£927
United Airlines
  • United Airlines
  • 21/1-25/1
  • 4 total stops
  • 29h 24m total
  • London to Oshkosh
Search Deals
8/12
  • 8/12
  • 3 total stops
  • 59h 10m total
  • London to Oshkosh
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£113 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Oshkosh 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 858,174 searches. Data last updated 3 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Oshkosh that are best for you.

Fly from

Heathrow

Fly to

Oshkosh

Route

Depart

Return

Price

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Tue 17/2

09:00-19:33

2 stops16h 33m

Appleton Intl

Tue 24/2

14:39-11:05

2 stops14h 26m

£747

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Wed 21/1

08:30-19:15

2 stops16h 45m

Appleton Intl

Sun 25/1

17:23-11:15

1 stop11h 52m

£750

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Wed 18/2

07:40-16:44

2 stops15h 04m

Appleton Intl

Tue 24/2

12:34-11:15

1 stop16h 41m

£750

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Wed 18/2

07:40-16:44

2 stops15h 04m

Appleton Intl

Mon 23/2

17:23-11:15

1 stop11h 52m

£750

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Wed 21/1

08:30-21:31

2 stops19h 01m

Appleton Intl

Sun 25/1

12:35-05:55

1 stop11h 20m

£751

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Fri 20/2

13:35-21:32

1 stop13h 57m

Appleton Intl

Wed 25/2

12:34-05:55

1 stop11h 21m

£775

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Tue 17/2

10:25-16:44

1 stop12h 19m

Appleton Intl

Thu 26/2

12:34-05:55

1 stop11h 21m

£775

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Mon 8/12

09:50-15:00

3 stops59h 10m

£555

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Thu 21/5

15:40-16:25

1 stop30h 45m

£677

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Mon 8/12

13:35-21:32

1 stop13h 57m

£789

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 11 results
1
2

Best time to book a flight from Heathrow to Oshkosh

Have a flexible travel schedule? Discover the best time to fly to Oshkosh from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Oshkosh

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Oshkosh (average of £408). Flying from London Heathrow Airport to Oshkosh in January is currently the most expensive (average of £663). 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 LHR to OS9?

Find hourly flight availability from Heathrow to Oshkosh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 December 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Oshkosh is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

How much does it cost for a return flight from London Heathrow Airport to Oshkosh?

Reviews of airlines servicing Oshkosh

Get insights into the airlines that provide service to Oshkosh. 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 Oshkosh. Reviews last updated 3 December 2025.
Check out reviews from past customers who have flown with United Airlines from London Heathrow Airport to Oshkosh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,063 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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
9,063 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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 Heathrow to Oshkosh. 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 London Heathrow Airport to Oshkosh?

    For as low as £750, United Airlines can have you in Oshkosh from London Heathrow Airport in 15h 04m. The distance from London Heathrow Airport to Oshkosh is about 3858 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Oshkosh (average of £408). Flying from London Heathrow Airport to Oshkosh in January is currently the most expensive (average of £663). 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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Alternative routes for Heathrow to Oshkosh

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Top 6 airlines flying from Heathrow to Oshkosh

Discover the top 6 airlines that operate flights from Heathrow to Oshkosh. 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 858,174 searches. Data last updated 3 December 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£471Average£564FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£517Average£630FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£566Average£649FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£620Average£828FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£661Average£854FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£683Average£1,054FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Oshkosh?

When you search for this flight from Heathrow to Oshkosh, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Oshkosh?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Oshkosh from Heathrow.

Can Cheapflights find flights from Heathrow to Oshkosh with no change fees?

Need flexible booking options for your flight to Oshkosh from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Oshkosh become cheaper?

Yes! Start tracking prices for Heathrow to Oshkosh flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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