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Heathrow

$588+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$817
(oojo)

One-way from

$588
(Gurufare)

Popular in

December

Cheapest in

October

Average price

$829
From Greater Peoria to London Heathrow
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One-way flight from Greater Peoria to London Heathrow
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Highest demand for flights based on searches. 32% potential increase in price ($499 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($75 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This oojo deal was found by Cheapflights users on 8/13. 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.
Sat 9/276:15 pmPIA - LHR
2 stops46h 10mBritish Airways
Sat 10/48:00 pmLHR - PIA
2 stops27h 55mBritish Airways
Deal found 8/13$817
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/2710:39 amPIA - LHR
1 stop14h 11mAmerican Airlines
Sat 10/49:15 amLHR - PIA
1 stop14h 30mAmerican Airlines
Deal found 8/13$851
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:39 pmPIA - LHR
1 stop9h 51mBritish Airways
Tue 8/267:25 pmLHR - PIA
2 stops28h 44mBritish Airways
Deal found 8/13$880
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/278:10 amPIA - LHR
2 stops30h 50mUnited Airlines
Sat 10/411:05 amLHR - PIA
2 stops35h 38mUnited Airlines
Deal found 8/13$902
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:39 pmPIA - LHR
1 stop9h 51mBritish Airways
Mon 8/252:25 pmLHR - PIA
1 stop14h 57mBritish Airways
Deal found 8/13$943
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:25 pmPIA - LHR
1 stop10h 40mBritish Airways
Sat 9/136:15 amLHR - PIA
2 stops21h 21mBritish Airways
Deal found 8/13$973

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 August 14, 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

Sat 9/27

6:15 pm-10:25 pm

2 stops46h 10m

London Heathrow

Sat 10/4

8:00 pm-5:55 pm

2 stops27h 55m

$817

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 9/27

10:39 am-6:50 am

1 stop14h 11m

London Heathrow

Sat 10/4

9:15 am-5:45 pm

1 stop14h 30m

$851

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 9/27

8:10 am-9:00 pm

2 stops30h 50m

London Heathrow

Sat 10/4

11:05 am-4:43 pm

2 stops35h 38m

$902

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 9/5

6:25 pm-11:05 am

1 stop10h 40m

London Heathrow

Sat 9/13

6:15 am-9:36 pm

2 stops21h 21m

$973

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 9/5

3:55 pm-10:40 am

2 stops12h 45m

London Heathrow

Sat 9/13

6:50 am-3:18 pm

2 stops14h 28m

$1,014

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 12/27

1:20 pm-7:10 am

2 stops11h 50m

London Heathrow

Sat 1/3

1:25 pm-2:08 pm

2 stops30h 43m

$1,162

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 8/22

8:00 pm-12:15 pm

1 stop10h 15m

$588

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 8/22

8:10 am-7:40 am

2 stops17h 30m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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.

Cheapflights Insights

Everything you need to know about your flight from Peoria to London Heathrow Airport

How much does it cost to fly round-trip from Peoria, Illinois 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 August 14, 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
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,266 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 28% 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.

  • What is the cheapest month to book a flight from Peoria, Illinois to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Peoria, Illinois to London Heathrow Airport (average of $661). Flying from Peoria, Illinois to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

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Alternative routes for Peoria to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$729Average$887FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$739Average$887FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$743Average$885FlexibilityNo cancel feeOn-time71%

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