PIA - LON

$799 Find Cheap Flights from Peoria to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Peoria to London departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Peoria to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Peoria to London, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$799
British Airways
Fri 11/14Fri 11/21
PIA - LHR • 1 stop
Cheapest one-way
$844
United Airlines
Sat 11/15
PIA - LHR • 2 stops
Top airlines
British Airways
Cheapest • from $799 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Peoria to London (PIA-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Peoria to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Peoria to London

Fri, Nov 14 - Fri, Nov 21
British Airways Logo
7:36 pm - 11:35 amPIA-LHR
9h 59m1 stop
British Airways Logo
2:10 pm - 11:49 pmLHR-PIA
15h 39m1 stop
$799British Airways
Find Deal
Sun, Mar 8 - Tue, Mar 31
United Airlines Logo
10:55 am - 7:55 amPIA-LHR
16h 00m1 stop
United Airlines Logo
7:25 am - 8:46 pmLHR-PIA
19h 21m2 stops
$808United Airlines
Find Deal
Sun, Mar 8 - Tue, Mar 31
United Airlines Logo
2:30 pm - 10:50 amPIA-LHR
15h 20m2 stops
United Airlines Logo
7:25 am - 4:31 pmLHR-PIA
15h 06m2 stops
$813United Airlines
Find Deal
Fri, Nov 14 - Fri, Nov 21
Multiple Airlines Logo
1:20 pm - 10:50 amPIA-LHR
15h 30m2 stops
Multiple Airlines Logo
12:15 pm - 9:31 pmLHR-PIA
15h 16m2 stops
$817Multiple Airlines
Find Deal
Sun, Mar 8 - Tue, Mar 31
United Airlines Logo
2:30 pm - 5:55 amPIA-LHR
10h 25m1 stop
United Airlines Logo
8:00 am - 4:31 pmLHR-PIA
14h 31m1 stop
$839United Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
British Airways Logo
7:27 pm - 6:55 amPIA-LHR
29h 28m1 stop
British Airways Logo
7:40 pm - 7:46 pmLHR-PIA
30h 06m2 stops
$843British Airways
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
4:52 pm - 11:25 amPIA-LHR
13h 33m2 stops
American Airlines Logo
7:40 am - 8:28 pmLHR-PIA
18h 48m2 stops
$916American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
4:52 pm - 11:25 amPIA-LHR
13h 33m2 stops
American Airlines Logo
8:20 am - 8:28 pmLHR-PIA
18h 08m1 stop
$922American Airlines
Find Deal
Sun, Nov 2 - Sat, Nov 8
Lufthansa Logo
5:23 pm - 10:20 pmPIA-LHR
22h 57m2 stops
Lufthansa Logo
8:15 pm - 9:31 pmLHR-PIA
31h 16m2 stops
$1,294Lufthansa
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Sun, Nov 2 - Sat, Nov 8
Lufthansa Logo
1:20 pm - 5:55 amPIA-LHR
10h 35m1 stop
Lufthansa Logo
5:30 pm - 4:40 pmLHR-PIA
29h 10m2 stops
$1,657Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Peoria to London flights

Get data-powered insights and trends into flights from Peoria to London to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Peoria, Illinois to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Peoria, Illinois to London departing in November.

What is the cheapest month to fly from Peoria to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Peoria to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Peoria to London is February, where tickets cost $734 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,150 and $1,147 respectively.

Good to know

Low seasonFebruary
Cheapest flight$799
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Peoria to London Heathrow Airport

When to book flights from Peoria to London

Are your dates flexible? Find out the best times to travel from Peoria to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Peoria to London

  • What is the cheapest flight from Peoria to London?

    In the last 3 days, the lowest price for a flight from Peoria to London was $844 for a one-way ticket and $799 for a round-trip.

  • Do I need a passport to fly between Peoria and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Peoria and on arrival in London.

  • Which aircraft models fly most regularly from Peoria to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Peoria to London?

    Star Alliance, and oneworld are the airline alliances operating flights between Peoria and London, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Peoria to London, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Peoria to London are United Airlines and American Airlines. With an average price for the route of $961 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,147 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Peoria to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Peoria to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Peoria to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Peoria is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Peoria to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Peoria with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Peoria to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Peoria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Peoria to London

 
See real verified KAYAK customer reviews for airlines flying from Peoria to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Peoria to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8933 reviews
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

6.0 GoodAnonymous, Sep 2025ORD - SYR
Read more United Airlines reviews

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

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