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$483+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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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 March 24, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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.
Sun 8/235:31 pm
PIA
-
LHR
2 stops18h 54m
Lufthansa
Tue 9/1510:50 am
LHR
-
PIA
2 stops18h 02m
Lufthansa
Deal found 3/24$785
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
Tue 9/15:31 pm
PIA
-
LHR
2 stops18h 54m
Lufthansa
Mon 9/77:30 pm
LHR
-
PIA
2 stops27h 26m
Lufthansa
Deal found 3/20$813
This Expedia deal was found by Cheapflights users on 3/24. 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.
Tue 4/211:20 pm
PIA
-
LHR
2 stops25h 25m
Lufthansa
Tue 4/2810:50 am
LHR
-
PIA
2 stops16h 23m
Lufthansa
Deal found 3/24$825
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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.
Wed 8/121:21 pm
PIA
-
LHR
2 stops14h 34m
Lufthansa
Wed 8/1910:50 am
LHR
-
PIA
2 stops18h 02m
Lufthansa
Deal found 3/24$838
This Expedia deal was found by Cheapflights users on 3/24. 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.
Tue 4/211:22 pm
PIA
-
LHR
1 stop15h 53m
British Airways
Tue 4/2812:15 pm
LHR
-
PIA
1 stop12h 19m
British Airways
Deal found 3/24$844
This FlightHub deal was found by Cheapflights users on 3/24. 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.
Sun 8/2310:06 am
PIA
-
LHR
1 stop15h 59m
Multiple Airlines
Tue 9/157:25 pm
LHR
-
PIA
2 stops28h 15m
Multiple Airlines
Deal found 3/24$845
This Finnair deal was found by Cheapflights users on 3/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:12 pm
PIA
-
LHR
1 stop16h 43m
Multiple Airlines
Tue 4/283:15 pm
LHR
-
PIA
1 stop14h 18m
Multiple Airlines
Deal found 3/24$846
This oojo deal was found by Cheapflights users on 3/24. 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.
Wed 8/1210:06 am
PIA
-
LHR
1 stop20h 09m
British Airways
Wed 8/1911:10 am
LHR
-
PIA
1 stop12h 39m
British Airways
Deal found 3/24$847
This Gotogate deal was found by Cheapflights users on 3/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:22 pm
PIA
-
LGW
2 stops24h 38m
British Airways
Tue 4/288:40 pm
LGW
-
PIA
2 stops27h 44m
British Airways
Deal found 3/24$852
This United Airlines deal was found by Cheapflights users on 3/20. 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 8/125:31 pm
PIA
-
LHR
1 stop12h 24m
United Airlines
Wed 8/192:05 pm
LHR
-
PIA
2 stops16h 17m
United Airlines
Deal found 3/20$855
This Booking.com deal was found by Cheapflights users on 3/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:06 am
PIA
-
LHR
1 stop16h 59m
British Airways
Mon 9/77:25 pm
LHR
-
PIA
2 stops28h 24m
British Airways
Deal found 3/20$860
This Expedia deal was found by Cheapflights users on 3/24. 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.
Tue 4/217:43 pm
PIA
-
LCY
2 stops40h 12m
Lufthansa
Tue 4/289:15 am
LCY
-
PIA
2 stops19h 42m
Lufthansa
Deal found 3/24$871

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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$785
(Cheapflightsfares)

One-way from

$483
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$788
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. 26% potential increase in price ($388 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($119 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 24, 2026.
Use the filters below to find and compare flights from Peoria to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 8/12

1:21 pm-9:55 am

2 stops14h 34m

London Heathrow

Wed 8/19

10:50 am-10:52 pm

2 stops18h 02m

$838

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 4/21

12:12 pm-10:55 am

1 stop16h 43m

London Heathrow

Tue 4/28

3:15 pm-11:33 pm

1 stop14h 18m

$846
Quickest round-trip

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 8/12

6:30 pm-10:30 am

1 stop10h 00m

London Heathrow

Wed 8/19

11:10 am-11:21 pm

1 stop18h 11m

$847

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Tue 4/21

1:22 pm-8:00 pm

2 stops24h 38m

London Gatwick

Tue 4/28

8:40 pm-6:24 pm

2 stops27h 44m

$852

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 9/1

10:06 am-9:05 am

1 stop16h 59m

London Heathrow

Mon 9/7

7:25 pm-5:49 pm

2 stops28h 24m

$860

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Tue 4/21

7:43 pm-5:55 pm

2 stops40h 12m

London City

Tue 4/28

9:15 am-10:57 pm

2 stops19h 42m

$871

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 4/9

5:35 pm-11:55 am

1 stop12h 20m

London Heathrow

Thu 10/29

11:10 am-12:19 am

2 stops18h 09m

$873

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 5/8

8:30 am-6:30 am

2 stops16h 00m

London Heathrow

Fri 5/15

6:50 am-10:49 pm

2 stops21h 59m

$877

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Fri 5/8

6:54 pm-6:30 pm

2 stops41h 36m

London City

Fri 5/15

7:15 pm-11:37 pm

2 stops34h 22m

$1,204

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 7/26

1:21 pm-9:00 am

1 stop13h 39m

London Heathrow

Thu 7/30

7:25 am-12:35 am

2 stops23h 10m

$1,252

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 March.
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

How much does it cost to fly round-trip from Peoria, Illinois to London?

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 March 24, 2026.
Peruse reviews from past customers who have flown with United Airlines,American Airlines, andBritish 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
9,469 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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
9,469 reviews
United Airlines
7.4
Good
9,469 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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
7.1
Good
11,492 reviews
United Airlines
7.4
Good
9,469 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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
7,813 reviews
United Airlines
7.4
Good
9,469 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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. Lufthansa provides one of the quickest options available for as low as $847. 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 35% 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

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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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$704Average$887FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$739Average$972FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$749Average$887FlexibilityNo cancel feeOn-time71%

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