HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$420+ Cheap flights from Peoria, IL (PIA) 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Peoria to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 11, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 2/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:20 pm
PIA
-
LHR
2 stops20h 20m
Lufthansa
Tue 9/810:50 am
LHR
-
PIA
2 stops19h 24m
Lufthansa
Deal found 2/11$634
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:06 am
PIA
-
LHR
1 stop16h 59m
British Airways
Mon 9/76:10 pm
LHR
-
PIA
2 stops35h 11m
British Airways
Deal found 2/11$648
This United Airlines deal was found by Cheapflights users on 2/9. 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 4/17:28 pm
PIA
-
LHR
1 stop10h 17m
United Airlines
Wed 4/86:50 am
LHR
-
PIA
2 stops18h 03m
United Airlines
Deal found 2/9$657
This United Airlines deal was found by Cheapflights users on 2/9. 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 8/127:00 am
PIA
-
LHR
2 stops19h 35m
United Airlines
Wed 8/192:05 pm
LHR
-
PIA
2 stops29h 36m
United Airlines
Deal found 2/9$666
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 pm
PIA
-
LHR
1 stop10h 45m
British Airways
Wed 8/1911:10 am
LHR
-
PIA
1 stop18h 11m
British Airways
Deal found 2/10$683
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:06 am
PIA
-
LHR
1 stop16h 59m
British Airways
Tue 9/89:45 am
LHR
-
PIA
1 stop14h 04m
British Airways
Deal found 2/11$684

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$657
(United Airlines)

One-way from

$420
(United Airlines)

Popular in

December

Cheapest in

September
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
One-way flight from Greater Peoria to London Heathrow
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($412 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($122 potential savings vs. average RT price).
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 February 11, 2026.
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

Wed 4/1

7:28 pm-11:45 am

1 stop10h 17m

London Heathrow

Wed 4/8

6:50 am-6:53 pm

2 stops18h 03m

$657

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 2/25

1:25 pm-11:15 am

1 stop15h 50m

London Heathrow

Sun 3/1

6:50 am-4:50 pm

2 stops16h 00m

$691

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 3/1

6:35 am-5:55 am

1 stop17h 20m

London Heathrow

Sun 3/8

11:10 am-10:20 pm

2 stops16h 10m

$692

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 7/18

5:38 pm-6:45 am

1 stop31h 07m

$420

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 2/23

10:01 am-10:25 am

1 stop18h 24m

$2,639

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 2/23

6:55 pm-7:00 pm

2 stops18h 05m

$2,686

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Peoria, Illinois-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 February 11, 2026.
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
9,279 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,279 reviews
United Airlines
7.4
Good
9,279 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,271 reviews
United Airlines
7.4
Good
9,279 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,731 reviews
United Airlines
7.4
Good
9,279 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 17m. United Airlines provides one of the quickest options available for as low as $657. There are 4069 mi between Peoria, Illinois and London Heathrow Airport.

  • 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 $704 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $739 and $749 round-trip.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$704Average$887FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$739Average$911FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$749Average$887FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights