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Cheap flights from Peoria, Illinois to London from £337

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
2 Jul — 9 Jul1
1 adult

Cheap 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 27 June 2025.

Round-trip from

£458

One-way from

£337

Popular in

August

Cheapest in

February

Average price

£836
United Airlines
  • United Airlines
  • 19/8-26/8
  • 3 total stops
  • 43h 09m total
  • Peoria to London
British Airways
  • British Airways
  • 22/8
  • 1 total stop
  • 10h 15m total
  • Peoria to London
Highest demand for flights based on searches. 21% potential increase in price (£138 potential increase over avg. return price).
Cheapest flight prices on average. 9% potential price decrease (£43 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find 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 27 June 2025.

Tue 19/817:19PIA - LHR
2 stops31h 11mUnited Airlines
Tue 26/809:30LHR - PIA
2 stops30h 43mUnited Airlines
Deal found 25/6£458
Tue 19/818:39PIA - LHR
1 stop9h 51mBritish Airways
Tue 26/809:15LHR - PIA
1 stop14h 54mBritish Airways
Deal found 26/6£467
Sun 10/816:15PIA - LHR
1 stop10h 50mAmerican Airlines
Sun 17/815:10LHR - PIA
1 stop13h 55mAmerican Airlines
Deal found 26/6£541
Thu 24/717:25PIA - LHR
2 stops17h 15mLufthansa
Thu 31/707:25LHR - PIA
2 stops20h 07mLufthansa
Deal found 27/6£600
Thu 7/817:25PIA - LCY
2 stops19h 10mLufthansa
Mon 18/808:45LCY - PIA
2 stops36h 33mLufthansa
Deal found 24/6£718
Sun 10/817:33PIA - LHR
3 stops44h 47mMultiple Airlines
Sun 17/821:25LHR - PIA
2 stops30h 06mMultiple Airlines
Deal found 26/6£824
Thu 7/806:45PIA - LCY
2 stops23h 45mMultiple Airlines
Mon 18/808:45LCY - PIA
3 stops18h 47mMultiple Airlines
Deal found 24/6£857
Fri 4/705:00PIA - LGW
2 stops21h 10mAmerican Airlines
Sat 26/710:40LGW - PIA
2 stops19h 32mAmerican Airlines
Deal found 25/6£968

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 27 June 2025.
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

Tue 19/8

17:19-06:30

2 stops31h 11m

London Heathrow

Tue 26/8

09:30-10:13

2 stops30h 43m

£458

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

£467

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/8

16:15-09:05

1 stop10h 50m

London Heathrow

Sun 17/8

15:10-23:05

1 stop13h 55m

£541

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 24/7

17:25-16:40

2 stops17h 15m

London Heathrow

Thu 31/7

07:25-21:32

2 stops20h 07m

£600

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Thu 7/8

17:25-18:35

2 stops19h 10m

London City

Mon 18/8

08:45-15:18

2 stops36h 33m

£718

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/8

17:33-20:20

3 stops44h 47m

London Heathrow

Sun 17/8

21:25-21:31

2 stops30h 06m

£824

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Thu 7/8

06:45-12:30

2 stops23h 45m

London City

Mon 18/8

08:45-21:32

3 stops18h 47m

£857

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 22/8

20:00-12:15

1 stop10h 15m

£337

Flights are sorted by cheapest return flights first.

Deals found on 26/6

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 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

How much does it cost for a return flight 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 27 June 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, andLufthansa from Peoria to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.0

Overall

7.4

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??

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.0

Overall

7.4

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??

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.0

Overall

7.4

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??

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.0

Overall

7.4

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??

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.0

Overall

7.4

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 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?

    For a flight from Peoria to London, you will be flying from Greater Peoria. Greater Peoria (PIA) is just 6.0 mi from the center of the city. Greater Peoria is the only Peoria airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Greater Peoria on a regular basis.

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

    Our cheapest airline available from Peoria, Illinois to London is United Airlines. Our recent data shows that you can find tickets from as low as £458 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at £467 and £541 round-trip. United Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

  • 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 holiday 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.

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

    Currently, January is the cheapest month in which you can book a flight from Peoria, Illinois to London (average of £112). Flying from Peoria, Illinois to London 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

Travelling to a place near Peoria?

Book flights to Peoria if you plan to visit one of these locations
Croydon
Milton Keynes
Hounslow
Deal
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Watford
Southend-on-Sea
Folkestone
Ipswich
Winchester
Hayes
Maidstone
Guildford
Chichester

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Certainly. Search results for flights to London from Peoria shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Peoria to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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