Find flights
When to book
FAQs

Cheap flights from Peoria, Illinois to London Heathrow Airport from £359

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Peoria to Heathrow

Enter your travel dates to find the best prices.

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 14 March 2026.

Wed 12/817:31
PIA
-
LHR
2 stops18h 09m
Lufthansa
Wed 19/809:00
LHR
-
PIA
2 stops19h 52m
Lufthansa
Deal found 14/3£565
Wed 8/419:43
PIA
-
LHR
2 stops14h 57m
Lufthansa
Wed 15/406:30
LHR
-
PIA
2 stops16h 14m
Lufthansa
Deal found 11/3£572
Tue 28/419:43
PIA
-
LHR
1 stop10h 12m
United Airlines
Tue 5/506:50
LHR
-
PIA
2 stops16h 00m
United Airlines
Deal found 14/3£582
Wed 8/414:50
PIA
-
LHR
1 stop11h 40m
United Airlines
Wed 15/407:25
LHR
-
PIA
2 stops15h 19m
United Airlines
Deal found 11/3£583
Wed 12/808:25
PIA
-
LHR
1 stop16h 20m
United Airlines
Wed 19/810:50
LHR
-
PIA
2 stops18h 02m
United Airlines
Deal found 13/3£584
Wed 12/810:06
PIA
-
LHR
1 stop19h 09m
Multiple Airlines
Wed 19/815:15
LHR
-
PIA
1 stop14h 06m
Multiple Airlines
Deal found 10/3£586
Sun 10/513:35
PIA
-
LHR
2 stops14h 25m
United Airlines
Tue 19/508:45
LHR
-
PIA
2 stops20h 04m
United Airlines
Deal found 10/3£587

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 14 March 2026.

Round-trip from

£565

One-way from

£359

Popular in

December

Cheapest in

September

Average price

£593
Lufthansa
  • Lufthansa
  • 12/8-19/8
  • 4 total stops
  • 38h 01m total
  • Peoria to London
Search Deals
United Airlines
  • United Airlines
  • 18/7
  • 2 total stops
  • 33h 02m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£219 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£68 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 14 March 2026.
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

Cheapest return flight

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

17:31-17:40

2 stops18h 09m

London Heathrow

Wed 19/8

10:50-22:52

2 stops18h 02m

£566

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 28/4

19:43-11:55

1 stop10h 12m

London Heathrow

Tue 5/5

06:50-16:50

2 stops16h 00m

£582

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

18:30-12:15

1 stop11h 45m

London Heathrow

Wed 19/8

14:45-23:21

1 stop14h 36m

£605

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/5

06:30-06:45

1 stop18h 15m

London Heathrow

Tue 19/5

11:05-16:50

1 stop11h 45m

£605

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 27/4

13:20-06:45

1 stop11h 25m

London Heathrow

Mon 4/5

15:30-16:50

2 stops31h 20m

£607

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

13:21-06:45

1 stop11h 24m

London Heathrow

Wed 19/8

14:05-00:22

2 stops16h 17m

£607

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 10/4

14:50-10:15

2 stops13h 25m

London Heathrow

Fri 17/4

08:00-14:08

1 stop12h 08m

£639
Fastest return journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 11/5

13:35-06:45

1 stop11h 10m

London Heathrow

Sun 17/5

11:05-16:50

1 stop11h 45m

£642

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 11/5

13:35-06:45

1 stop11h 10m

London Heathrow

Mon 18/5

11:05-16:50

1 stop11h 45m

£642

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 12/5

13:35-10:00

2 stops14h 25m

London Heathrow

Mon 18/5

11:05-16:50

1 stop11h 45m

£645

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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.

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?

    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.

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

    Lufthansa and United Airlines can get you from Peoria, Illinois to London Heathrow Airport in just under 10h 12m. Your travel time can differ by up to 7h 57m. Peoria, Illinois and London Heathrow Airport are separated by a distance of 4069 mi. This flight may include one or multiple stops.

  • 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Swindon
Bedford

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.

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?

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.

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.