HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$408+ Cheap flights from Peoria, IL (PIA) to London (LON)

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Peoria to London 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 London

Cheapest flights from Peoria to London
Explore the most affordable flight options available from Peoria to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.

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 2/8. 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 3/256:35 am
PIA
-
LHR
2 stops19h 35m
United Airlines
Wed 4/17:25 am
LHR
-
PIA
2 stops15h 19m
United Airlines
Deal found 2/8$661
This United Airlines deal was found by Cheapflights users on 2/8. 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 8/128:10 am
PIA
-
LHR
1 stop18h 20m
United Airlines
Wed 8/192:05 pm
LHR
-
PIA
2 stops29h 36m
United Airlines
Deal found 2/8$666
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Tue 3/242:20 pm
PIA
-
LHR
1 stop10h 35m
United Airlines
Tue 3/318:00 am
LHR
-
PIA
1 stop19h 08m
United Airlines
Deal found 2/7$670
This FlightHub deal was found by Cheapflights users on 2/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:22 pm
PIA
-
LHR
1 stop15h 08m
British Airways
Thu 5/147:30 pm
LHR
-
PIA
2 stops28h 54m
British Airways
Deal found 2/8$677
This Cheapflightsfares deal was found by Cheapflights users on 2/7. 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.
Thu 5/78:20 pm
PIA
-
LCY
2 stops15h 35m
Lufthansa
Fri 5/159:15 am
LCY
-
PIA
2 stops19h 14m
Lufthansa
Deal found 2/7$723
This Expedia deal was found by Cheapflights users on 2/7. 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.
Wed 3/255:25 pm
PIA
-
LCY
2 stops19h 15m
Lufthansa
Wed 4/19:15 am
LCY
-
PIA
2 stops19h 12m
Lufthansa
Deal found 2/7$914
This KAYAK deal was found by Cheapflights users on 2/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:42 am
PIA
-
LCY
2 stops25h 13m
Lufthansa
Thu 7/309:15 am
LCY
-
PIA
2 stops19h 30m
Lufthansa
Deal found 2/5$1,119
This KAYAK deal was found by Cheapflights users on 2/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:42 am
PIA
-
LCY
2 stops25h 13m
Lufthansa
Tue 8/46:30 pm
LCY
-
PIA
2 stops34h 15m
Lufthansa
Deal found 2/5$1,139
This KAYAK deal was found by Cheapflights users on 2/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:38 pm
PIA
-
LCY
2 stops42h 17m
Lufthansa
Tue 8/46:30 pm
LCY
-
PIA
2 stops34h 15m
Lufthansa
Deal found 2/5$1,145
This Expedia deal was found by Cheapflights users on 2/6. 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.
Mon 3/232:20 pm
PIA
-
LCY
2 stops22h 20m
Lufthansa
Mon 3/309:15 am
LCY
-
PIA
2 stops37h 29m
Lufthansa
Deal found 2/6$1,153
This KAYAK deal was found by Cheapflights users on 2/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:42 am
PIA
-
LCY
2 stops25h 13m
Lufthansa
Wed 8/59:15 am
LCY
-
PIA
2 stops19h 30m
Lufthansa
Deal found 2/5$1,194

Find flight deals from Peoria to London

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to London (LON). 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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$658
(United Airlines)

One-way from

$408
(United Airlines)

Popular in

December

Cheapest in

September
Provider with most accurate pricing for Greater Peoria-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Peoria-London (LON) flights.
Search Deals
From Greater Peoria to London (LON)
Search Deals
One-way flight from Greater Peoria to London (LON)
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 London 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 9, 2026.
Use the filters below to find and compare flights from Peoria to London that are best for you.

Fly from

Peoria

Fly to

London

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 3/25

6:35 am-7:10 am

2 stops19h 35m

London Heathrow

Wed 4/1

7:25 am-4:44 pm

2 stops15h 19m

$661

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 3/24

2:20 pm-5:55 am

1 stop10h 35m

London Heathrow

Tue 3/31

8:00 am-9:08 pm

1 stop19h 08m

$670

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 4/28

7:28 pm-7:40 pm

2 stops18h 12m

London Heathrow

Thu 5/14

8:25 pm-10:29 pm

2 stops32h 04m

$677

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 3/25

5:22 pm-12:15 pm

1 stop13h 53m

London Heathrow

Wed 4/1

11:10 am-6:20 pm

1 stop13h 10m

$686

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Thu 5/7

8:20 pm-5:55 pm

2 stops15h 35m

London City

Fri 5/15

9:15 am-10:29 pm

2 stops19h 14m

$723

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Wed 3/25

5:25 pm-5:40 pm

2 stops19h 15m

London City

Wed 4/1

9:15 am-10:27 pm

2 stops19h 12m

$914

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Mon 3/23

2:20 pm-5:40 pm

2 stops22h 20m

London City

Mon 3/30

9:15 am-4:44 pm

2 stops37h 29m

$1,153

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Wed 7/22

6:55 pm-10:50 am

2 stops33h 55m

London Gatwick

Mon 8/3

8:40 pm-6:22 pm

2 stops27h 42m

$1,755

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Wed 7/22

9:58 am-10:50 am

2 stops42h 52m

London Gatwick

Thu 7/30

11:30 am-11:42 pm

2 stops42h 12m

$1,767

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 25 results
1
2
3

Compare providers for flights from Peoria to London

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 London in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 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 flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Peoria, Illinois-London 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London 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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated February 9, 2026.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and British Airways from Peoria to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,259 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

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
9,259 reviews
United Airlines
7.4
Good
9,259 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

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
11,258 reviews
United Airlines
7.4
Good
9,259 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

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
7,723 reviews
United Airlines
7.4
Good
9,259 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

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 London. 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?

    Located just 6.0 mi from the city center, Greater Peoria is the airport most travelers will use when flying to London from Peoria. Booking flights from Greater Peoria (PIA) to London should be relatively easy as there are 0 daily outbound flights to London from 3 different airlines.

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

    A quick flight from Peoria, Illinois to London can take about 10h 17m. United Airlines provides one of the quickest options available for as low as $657. Airlines will cover a distance of 4069 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    British Airways, at $704, was found to be the cheapest airline from Peoria, Illinois to London.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 34% lower than the current average price 3 months from now.

  • What are the most popular routes from Peoria, Illinois to London?

    The most popular flight routes from Peoria, Illinois to London are Greater Peoria - London Heathrow, Greater Peoria - London City and Greater Peoria - London Gatwick.

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

    Yes. In addition to deals on Peoria to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Peoria to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Peoria to London.

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

    Yes. Cheapflights offers flight deals from Peoria to London 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?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

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 London

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Heathrow flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
O'Hare Intl to Stansted flights
Midway to Heathrow flights
O'Hare Intl to Edinburgh flights
O'Hare Intl to Luton flights
St. Louis to Heathrow flights
O'Hare Intl to Manchester flights
St. Louis to Gatwick flights
St. Louis to Stansted flights
Midway to Edinburgh flights
Midway to Manchester flights
St. Louis to London City flights
St. Louis to Edinburgh flights
St. Louis to Luton flights
O'Hare Intl to Leeds flights
Midway to Gatwick flights
Midway to Stansted flights
St. Louis to Manchester flights
Peoria to Heathrow flights
O'Hare Intl to Newcastle upon Tyne flights
O'Hare Intl to Southampton flights
O'Hare Intl to Birmingham flights
Midway to Newcastle upon Tyne flights
O'Hare Intl to Bristol flights
Moline to Heathrow flights
O'Hare Intl to Newquay flights
Midway to Birmingham flights
Springfield to Heathrow flights
Bloomington to Heathrow flights
Midway to Luton flights
Peoria to London City flights
Evansville to Heathrow flights
Champaign to Heathrow flights
St. Louis to Birmingham flights
Midway to London City flights
O'Hare Intl to Liverpool flights
Midway to Leeds flights
Evansville to Manchester flights
O'Hare Intl to Exeter flights
Moline to Gatwick flights
Midway to Southampton flights
Midway to Bristol flights
Midway to Grimsby flights
St. Louis to Leeds flights
O'Hare Intl to Grimsby flights
Peoria to Gatwick flights

Top 3 airlines flying from Peoria to London

Discover the top 3 airlines that operate flights from Peoria to London. 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 9, 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.