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

British Airways, at £479, was found to be the cheapest airline from Peoria, Illinois to London Heathrow Airport.Alternate airlines flying return to your destination include United Airlines and American Airlines. You may be able to fly from Peoria, Illinois to London Heathrow Airport for 37% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Peoria, Illinois to London Heathrow Airport one-way?

For one-way options, check prices for American Airlines. According to our data, you can fly for as low as £345. Users have also found prices from £378 and £400 on United Airlines and British Airways, respectively.

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

Currently, January is the cheapest month in which you can book a flight from Peoria, Illinois to London Heathrow Airport (average of £112). Flying from Peoria, Illinois to London Heathrow Airport in August is currently the most expensive (average of £164). 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 month to fly from Peoria, Illinois to London Heathrow Airport?

February can be a great time to fly to London Heathrow Airport from Peoria, Illinois with a flight ticket averaging about £699. Cheapflights users have found deals in the month of February for as cheap as £540. The most expensive prices can be found in the month of August.

What is the cheapest time of day to fly from PIA to LHR?

When flying from Peoria, Illinois to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most people fly from Greater Peoria (PIA) if they book a flight from Peoria to London Heathrow. On average, Greater Peoria has 0 outbound flights to London Heathrow per day from 0 airlines. Greater Peoria is conveniently located just 6.0 mi from Peoria’s city center.

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 holiday 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.

£341+ Flights from Peoria, Illinois to London Heathrow Airport

Cheap flight deals from Peoria to Heathrow

Round-trip from	£479
One-way from	£341
Popular in	December
Cheapest in	October
Average price	£1,002

British Airways
19/8-26/8
2 total stops
24h 45m total
Peoria to London

Search Deals

11/7
3 total stops
57h 24m total
Peoria to London

Search Deals

Highest demand for flights based on searches. 32% potential increase in price (£265 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£41 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 13 June 2025.

Tue 19/818:39PIA - LHR

1 stop9h 51mBritish Airways

Tue 26/809:15LHR - PIA

1 stop14h 54mBritish Airways

Deal found 12/6£479

Wed 20/810:07PIA - LHR

1 stop14h 43mAmerican Airlines

Mon 25/809:15LHR - PIA

1 stop15h 55mAmerican Airlines

Deal found 13/6£517

Wed 20/808:10PIA - LHR

2 stops19h 50mUnited Airlines

Mon 25/813:45LHR - PIA

2 stops31h 33mUnited Airlines

Deal found 13/6£539

Sun 27/717:33PIA - LHR

3 stops44h 47mMultiple Airlines

Sun 3/808:50LHR - PIA

2 stops35h 23mMultiple Airlines

Deal found 12/6£1,051

Thu 21/817:19PIA - LHR

2 stops17h 21mLufthansa

Sat 23/807:25LHR - PIA

2 stops19h 27mLufthansa

Deal found 13/6£1,191

Best flights from Peoria to Heathrow
Discover carefully curated flight deals from Peoria to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Tue 19/818:39PIA - LHR

1 stop9h 51mBritish Airways

Tue 26/809:15LHR - PIA

1 stop14h 54mBritish Airways

Deal found 12/6£479

Wed 20/806:55PIA - LHR

2 stops21h 05mUnited Airlines

Mon 25/812:10LHR - PIA

2 stops33h 08mUnited Airlines

Deal found 10/6£539

Thu 24/718:24PIA - LHR

1 stop11h 51mAmerican Airlines

Thu 31/709:15LHR - PIA

1 stop12h 48mAmerican Airlines

Deal found 12/6£575

Sun 27/717:33PIA - LHR

3 stops44h 47mMultiple Airlines

Sun 3/808:50LHR - PIA

2 stops35h 23mMultiple Airlines

Deal found 12/6£1,051

Thu 21/817:19PIA - LHR

2 stops17h 21mLufthansa

Sat 23/807:25LHR - PIA

2 stops19h 27mLufthansa

Deal found 12/6£1,191

Last-minute flights from Peoria to Heathrow
Discover last-minute flight deals from Peoria to Heathrow. Data last updated 13 June 2025 and is based on user searches.

Sun 13/718:24PIA - LHR

1 stop10h 41mBritish Airways

Tue 22/719:10LHR - PIA

2 stops34h 25mBritish Airways

Deal found 11/6£526

Sun 13/706:45PIA - LHR

2 stops21h 15mUnited Airlines

Tue 22/710:50LHR - PIA

2 stops29h 29mUnited Airlines

Deal found 11/6£606

Thu 24/718:24PIA - LHR

1 stop11h 51mAmerican Airlines

Thu 31/709:15LHR - PIA

1 stop12h 48mAmerican Airlines

Deal found 13/6£539

Sun 27/717:33PIA - LHR

3 stops44h 47mMultiple Airlines

Sun 3/808:50LHR - PIA

2 stops35h 23mMultiple Airlines

Deal found 12/6£1,051

One-way flights from Peoria to Heathrow
Search for one-way flight options from Peoria to Heathrow. Find affordable one-way fares based on user searches. Data last updated 13 June 2025.

Fri 11/721:51PIA - LHR

3 stops57h 24mMultiple Airlines

Deal found 12/6£341

Fri 22/810:07PIA - LHR

1 stop17h 03mAmerican Airlines

Deal found 12/6£345

Fri 22/810:49PIA - LHR

2 stops14h 06mUnited Airlines

Deal found 10/6£378

Fri 11/718:24PIA - LHR

1 stop11h 51mBritish Airways

Deal found 12/6£400

Cheapflights Fare Finder

Use the filters below to find and compare flights from Peoria to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 19/8

18:39-10:30

1 stop9h 51m

London Heathrow

Tue 26/8

09:15-18:09

1 stop14h 54m

£479

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 20/8

06:55-10:00

2 stops21h 05m

London Heathrow

Mon 25/8

12:10-15:18

2 stops33h 08m

£539

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 24/7

18:24-12:15

1 stop11h 51m

London Heathrow

Thu 31/7

09:15-16:03

1 stop12h 48m

£575

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 27/7

17:33-20:20

3 stops44h 47m

London Heathrow

Sun 3/8

08:50-14:13

2 stops35h 23m

£1,051

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 21/8

17:19-16:40

2 stops17h 21m

London Heathrow

Sat 23/8

07:25-20:52

2 stops19h 27m

£1,191

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 11/7

21:51-13:15

3 stops57h 24m

£341

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 22/8

10:07-09:10

1 stop17h 03m

£345

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 22/8

20:00-12:15

1 stop10h 15m

£378

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 11/7

15:39-11:25

2 stops13h 46m

£415

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 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 Peoria to London Heathrow Airport

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

United Airlines

7.4

Good

8,790 reviews

Check prices

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

Check prices

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

Check prices

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

Check prices

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

7,011 reviews

United Airlines

7.4

Good

8,790 reviews

Check prices

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

What airport do you fly from for flights from Peoria to London Heathrow?
Most people fly from Greater Peoria (PIA) if they book a flight from Peoria to London Heathrow. On average, Greater Peoria has 0 outbound flights to London Heathrow per day from 0 airlines. Greater Peoria is conveniently located just 6.0 mi from Peoria’s city center.
What are the cheapest airlines flying from Peoria, Illinois to London Heathrow Airport round-trip?
British Airways, at £479, was found to be the cheapest airline from Peoria, Illinois to London Heathrow Airport.Alternate airlines flying return to your destination include United Airlines and American Airlines. You may be able to fly from Peoria, Illinois to London Heathrow Airport for 37% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Peoria, Illinois to London Heathrow Airport one-way?
For one-way options, check prices for American Airlines. According to our data, you can fly for as low as £345. Users have also found prices from £378 and £400 on United Airlines and British Airways, respectively.
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 holiday 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, January is the cheapest month in which you can book a flight from Peoria, Illinois to London Heathrow Airport (average of £112). Flying from Peoria, Illinois to London Heathrow Airport in August is currently the most expensive (average of £164). 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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Folkestone

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Swindon

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How does Cheapflights help users find flights from Peoria to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Peoria to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Peoria to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Peoria to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Peoria to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Peoria to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Peoria to Heathrow become cheaper?

Yes! Start tracking prices for Peoria to Heathrow 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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Cheap flights from Peoria, Illinois to London Heathrow Airport from £341

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Peoria to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Peoria to Heathrow

Cheapest flights from Peoria to HeathrowExplore 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 13 June 2025.

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 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Peoria to London Heathrow Airport that are best for you.

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.

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.

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

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?

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

What are the cheapest airlines to fly from Peoria, Illinois to London Heathrow Airport one-way?

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

How can I find direct flights from Peoria to Heathrow?

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

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

Travelling to a place near Peoria?

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.

Alternative routes for Peoria to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Peoria to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Peoria to Heathrow?

Can Cheapflights find flights from Peoria to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Peoria to Heathrow become cheaper?

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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 13 June 2025.