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Cheap flights from London Heathrow Airport to Oshkosh from £575

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MKE
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Oshkosh

Keep the following information in mind while searching for Heathrow to Oshkosh flight deals. Data was last updated 4 November 2025.

Round-trip from

£802

One-way from

£575

Popular in

July

Cheapest in

April

Average price

£1,009
Lufthansa
  • Lufthansa
  • 22/4-28/4
  • 3 total stops
  • 27h 30m total
  • London to Oshkosh
Search Deals
United Airlines
  • United Airlines
  • 5/1
  • 2 total stops
  • 17h 04m total
  • London to Oshkosh
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 4 November 2025.

Fri 12/1209:40LHR - ATW
2 stops17h 11mVirgin Atlantic
Sun 14/1211:13ATW - LHR
2 stops18h 12mVirgin Atlantic
Deal found 3/11£935

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 4 November 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

Wed 22/4

06:55-16:50

2 stops15h 55m

Appleton Intl

Tue 28/4

13:10-06:45

1 stop11h 35m

£802

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Fri 20/2

11:40-23:22

2 stops17h 42m

Appleton Intl

Tue 24/2

17:50-06:55

1 stop31h 05m

£825

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Fri 20/2

06:50-16:44

2 stops15h 54m

Appleton Intl

Tue 24/2

15:45-10:50

2 stops13h 05m

£832

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Fri 20/2

08:30-21:32

2 stops19h 02m

Appleton Intl

Tue 24/2

17:23-07:55

1 stop32h 32m

£832

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Thu 30/4

07:25-16:50

2 stops15h 25m

Appleton Intl

Mon 4/5

17:35-11:45

1 stop12h 10m

£842

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Thu 30/4

11:45-20:40

1 stop14h 55m

Appleton Intl

Mon 4/5

12:06-13:10

1 stop19h 04m

£863

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Fri 12/12

09:40-20:51

2 stops17h 11m

Appleton Intl

Sun 14/12

11:13-11:25

2 stops18h 12m

£935

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Mon 5/1

08:00-19:04

2 stops17h 04m

£575

LondonAppleton

LHR - ATW

LHRATW

London Heathrow

Mon 5/1

10:50-22:54

1 stop18h 04m

£703

Flights are sorted by cheapest return flights first.

Deals found on 2/11

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 £432). Flying from London Heathrow Airport to Oshkosh in December is currently the most expensive (average of £662). 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 4 November 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.

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 4 November 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
8,997 reviews
Check prices

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

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
8,997 reviews
United Airlines
7.4
Good
8,997 reviews
Check prices

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

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 £802, Lufthansa can have you in Oshkosh from London Heathrow Airport in 15h 55m. 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 £432). Flying from London Heathrow Airport to Oshkosh in December is currently the most expensive (average of £662). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£474Average£567FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£524Average£647FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£569Average£653FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£583Average£861FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£623Average£843FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£664Average£850FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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