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$504+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$715
(Ovago)

One-way from

$504
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,362
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 ($491 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($74 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/136:24 pmPIA - LHR
1 stop10h 41mBritish Airways
Tue 7/227:10 pmLHR - PIA
2 stops34h 25mBritish Airways
Deal found 6/11$715
This United Airlines deal was found by Cheapflights users on 6/12. 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 8/206:55 amPIA - LHR
2 stops19h 40mUnited Airlines
Mon 8/2512:10 pmLHR - PIA
2 stops33h 08mUnited Airlines
Deal found 6/12$732
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 7/246:24 pmPIA - LHR
1 stop11h 51mAmerican Airlines
Thu 7/319:15 amLHR - PIA
1 stop12h 48mAmerican Airlines
Deal found 6/12$781
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/275:33 pmPIA - LHR
3 stops44h 47mMultiple Airlines
Sun 8/38:50 amLHR - PIA
2 stops35h 23mMultiple Airlines
Deal found 6/12$1,428
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:19 pmPIA - LHR
2 stops19h 06mLufthansa
Sat 8/236:30 amLHR - PIA
2 stops16h 13mLufthansa
Deal found 6/10$1,647

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 June 12, 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

Sun 7/13

6:24 pm-11:05 am

1 stop10h 41m

London Heathrow

Tue 7/22

7:10 pm-11:35 pm

2 stops34h 25m

$715

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 8/20

6:55 am-8:35 am

2 stops19h 40m

London Heathrow

Mon 8/25

12:10 pm-3:18 pm

2 stops33h 08m

$732

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 7/24

6:24 pm-12:15 pm

1 stop11h 51m

London Heathrow

Thu 7/31

9:15 am-4:03 pm

1 stop12h 48m

$781

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 7/27

5:33 pm-8:20 pm

3 stops44h 47m

London Heathrow

Sun 8/3

8:50 am-2:13 pm

2 stops35h 23m

$1,428

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 8/21

5:19 pm-6:25 pm

2 stops19h 06m

London Heathrow

Sat 8/23

6:30 am-4:43 pm

2 stops16h 13m

$1,647

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 7/11

9:51 pm-8:00 am

3 stops52h 09m

$504

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 8/22

10:49 am-6:55 am

2 stops14h 06m

$513

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 7/11

6:24 pm-10:20 am

1 stop9h 56m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

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
8,790 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

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??
Lufthansa
6.8
Okay
7,139 reviews
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

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
6.6
Okay
7,008 reviews
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

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 $715 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $732 and $781 round-trip. British Airways is 30% 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 $1,108). 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 Peoria?

Book flights to Peoria if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$729Average$887FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$743Average$887FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$829Average$1,159FlexibilityNo cancel feeOn-time69%

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