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$615+ Cheap flights from Peoria, IL (PIA) 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap flight deals from Peoria to Heathrow

Cheapest flights from Peoria to Heathrow
Explore the most affordable flight options available from Peoria to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

This Gotogate deal was found by Cheapflights users on 12/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:19 pmPIA - LHR
1 stop11h 56mLufthansa
Sat 1/37:40 amLHR - PIA
1 stop15h 03mLufthansa
Deal found 12/27$2,334
This United Airlines deal was found by Cheapflights users on 12/27. 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.
Wed 12/316:30 amPIA - LHR
2 stops21h 45mUnited Airlines
Sat 1/34:20 pmLHR - PIA
2 stops26h 00mUnited Airlines
Deal found 12/27$2,549

Find flight deals from Peoria to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$615
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$1,107
Provider with most accurate pricing for Greater Peoria-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Peoria-London Heathrow flights.
Search Deals
From Greater Peoria to London Heathrow
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Peoria 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 December 30, 2025.
Use the filters below to find and compare flights from Peoria to London Heathrow Airport that are best for you.

Fly from

Peoria

Fly to

Heathrow

Route

Depart

Return

Price

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 1/27

5:18 pm-5:05 pm

2 stops17h 47m

London Heathrow

Tue 2/3

11:10 am-9:39 pm

2 stops16h 29m

$615

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 2/11

3:00 pm-7:55 am

1 stop10h 55m

London Heathrow

Wed 2/18

6:35 am-4:50 pm

2 stops16h 15m

$639

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 1/27

3:00 pm-7:55 am

1 stop10h 55m

London Heathrow

Tue 2/3

11:10 am-9:39 pm

2 stops16h 29m

$639

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 2/13

5:25 pm-11:15 am

1 stop11h 50m

London Heathrow

Wed 2/18

7:40 am-9:26 pm

2 stops19h 46m

$652

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 1/21

10:45 am-5:55 am

1 stop13h 10m

London Heathrow

Sun 1/25

6:50 am-4:43 pm

2 stops15h 53m

$689

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 1/9

6:30 am-7:10 am

2 stops18h 40m

London Heathrow

Tue 1/13

6:50 am-9:39 pm

2 stops20h 49m

$692

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 4/28

1:20 pm-11:45 am

1 stop16h 25m

London Heathrow

Sat 5/2

10:50 am-9:43 pm

2 stops16h 53m

$841

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Compare providers for flights from Peoria to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Peoria to Heathrow in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Peoria, Illinois-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Peoria, Illinois-London Heathrow Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Peoria, Illinois-London Heathrow Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Peoria, Illinois-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Peoria to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Peoria 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.

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 December 30, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and British Airways from Peoria to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,124 reviews
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,074 reviews
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
7,626 reviews
United Airlines
7.4
Good
9,124 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Peoria to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Peoria to London Heathrow?

    Greater Peoria (PIA), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Peoria to London Heathrow. 3 airlines have flights from Greater Peoria to London Heathrow on a regular basis. Booking flights from Greater Peoria to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Peoria, Illinois to London Heathrow Airport?

    A quick flight from Peoria, Illinois to London Heathrow Airport can take about 10h 55m. Lufthansa provides one of the quickest options available for as low as $639. There are 4069 mi between Peoria, Illinois and London Heathrow Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Peoria, Illinois to London Heathrow Airport round-trip?

    Our cheapest airline available from Peoria, Illinois to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as $729 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $739 and $743 round-trip. British Airways is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Peoria 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.

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
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
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Broadway
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Chipping Norton
Horley
Kingston upon Thames

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Top 3 airlines flying from Peoria to Heathrow

Discover the top 3 airlines that operate flights from Peoria 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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$729Average$906FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$739Average$911FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$743Average$887FlexibilityNo cancel feeOn-time71%

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