Prices may change. Select and confirm the full itinerary with the booking provider. Dates can differ between airport cards.
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Same airports & dates. Each provider checks its own current prices.
ORD → LHR · Jan 23–Jan 30
Search fare; select your return flight to confirm.
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$674 for Jan 23–Jan 30, 2027, compared with $1,026 for Jun 27–Jul 4, 2027.
13 seven-night date pairs from ORD to the same arrival-airport set (LHR). Lowest returned fare per date pair; checks within 24 hours. Airlines, stops and ticket conditions can differ. A travel-date comparison, not a booking-time prediction.
Explore the cheaper date samples ↗The same dated search ranged from $484 to $736 across 61 historical price observations.
ORD → LHR · Jan 23–Jan 30, 2027. Google Flights history covers Jul 29, 2026–Sep 27, 2026. The percentage is the low below the high. This does not prove when you should book or what subscribers will save.
See the price history ↗ORD → LHR · Jan 23–Jan 30, 2027. Recorded Sep 27, 2026.
Our archive starts Sep 27, 2026 and contains 245 seven-night fare observations for this route. Search fare; return may require confirmation. This is our record, not an industry-wide all-time low or a current offer.
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Same dates: Jan 23–Jan 30. Same arrival airports: LHR.
1 stop outbound
2 stops outbound
$274 separates the lowest and highest airport sample for these dates. These are search-result fares for seven-night trips. Flight times, stops and baggage can differ. Ground transport is excluded.
Across 13 matched date pairs in this sample, ORD had the lowest airport fare 13 time(s); MDW had the lowest airport fare 0 time(s). Ties count for each airport. This describes the sampled dates only.
A cheaper ticket can come with a pricier ride. Add your own round-trip transport estimate to the matched fares.
Flight sample $964
$964fare + transportFlight sample $1,269
$1,269fare + transportAdd your transport estimates to compare your total.
One adult, economy, USD. The two fares use identical dates and arrival-airport sets, checked within 24 hours. Transport starts at $0 because we don’t know your starting point. Baggage and other extras are excluded. Prices and itineraries can differ.
ORD → LHR, Oct 11. Nonstop.
Across 26 seven-night airport/date searches. Includes connecting carriers.
Lowest: $674, Jan 23–Jan 30 from ORD.
ORD in these outbound results. This is not a full schedule.
Derived from the current seven-night observations on this page. Outbound times describe the outbound journey only; fare amounts are round-trip search results. See sources and coverage.
Lowest fare in each sampled departure month. Seven-night trips only.
Swipe to see more months →
Tap a bar to see the dates, airports and check time behind that sample.
| Departure month | Lowest sample | Date pairs |
|---|---|---|
| 2026-10 | $775 | 2 |
| 2026-11 | $722 | 1 |
| 2026-12 | $722 | 2 |
| 2027-01 | $674 | 1 |
| 2027-02 | $735 | 1 |
| 2027-03 | $767 | 1 |
| 2027-04 | $772 | 1 |
| 2027-05 | $733 | 1 |
| 2027-06 | $997 | 2 |
| 2027-07 | $951 | 1 |
Sampled dates, not a complete fare calendar. Each month can have different date coverage. This chart describes future travel dates, not past price movements.
Prices checked within seven days. Use the filters to find a trip that fits.
| Dates / airports | Airline / outbound | Round trip | Check price |
|---|---|---|---|
| Jan 23–Jan 30ORD → LHR · 7 nights |  American British Airways1 stop · 27h 30m | $674Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Nov 6–Nov 13ORD → LHR · 7 nights |  Tap Air Portugal1 stop · 15h 20m | $722Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 2–Dec 9ORD → LHR · 7 nights | Tap Air Portugal1 stop · 14h 30m | $722Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| May 6–May 13ORD → LHR · 7 nights | AmericanBritish Airways1 stop · 19h 25m | $733Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 2–Dec 9ORD → LHR · 7 nights |  Icelandair1 stop · 10h 20m | $733Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Feb 18–Feb 25ORD → LHR · 7 nights | Icelandair1 stop · 10h 20m | $735Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jan 23–Jan 30ORD → LHR · 7 nights | Icelandair1 stop · 10h 20m | $735Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Mar 15–Mar 22ORD → LHR · 7 nights | Icelandair1 stop · 10h 20m | $767Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Apr 10–Apr 17ORD → LHR · 7 nights | Icelandair1 stop · 10h 30m | $772Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Oct 25–Nov 1ORD → LHR · 7 nights | Icelandair1 stop · 10h 20m | $775Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Feb 18–Feb 25ORD → LHR · 7 nights | AmericanBritish Airways1 stop · 13h 25m | $796Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Nov 6–Nov 13ORD → LHR · 7 nights | Icelandair1 stop · 19h 0m | $798Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| May 6–May 13ORD → LHR · 7 nights | Icelandair1 stop · 18h 55m | $809Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 2–Dec 9ORD → LHR · 7 nights |  Aer Lingus1 stop · 10h 10m | $859Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 2–Dec 9ORD → LHR · 7 nights |  UnitedNonstop · 8h 10m | $868Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 28–Jan 4ORD → LHR · 7 nights | AmericanBritish Airways1 stop · 15h 14m | $872Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Feb 18–Feb 25ORD → LHR · 7 nights | AmericanNonstop · 7h 45m | $874Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Feb 18–Feb 25ORD → LHR · 7 nights | British AirwaysNonstop · 7h 45m | $874Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 2–Dec 9MDW → LHR · 7 nights |  Delta1 stop · 12h 28m | $882Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Oct 25–Nov 1ORD → LHR · 7 nights | UnitedNonstop · 8h 10m | $918Return also checkedChecked Sep 27 | Google Skyscanner ↗ItineraryORD → LHR LHR → BRU BRU → ORD |
| Feb 18–Feb 25MDW → LHR · 7 nights | Delta1 stop · 12h 15m | $925Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Mar 15–Mar 22MDW → LHR · 7 nights | Delta1 stop · 13h 35m | $925Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| May 6–May 13MDW → LHR · 7 nights | Delta1 stop · 11h 55m | $929Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Nov 6–Nov 13MDW → LHR · 7 nights | Delta1 stop · 12h 18m | $932Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Oct 25–Nov 1MDW → LHR · 7 nights | Delta1 stop · 10h 51m | $940Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jan 23–Jan 30MDW → LHR · 7 nights | Delta Virgin Atlantic2 stops · 20h 35m | $948Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jul 23–Jul 30ORD → LHR · 7 nights | Tap Air Portugal1 stop · 12h 45m | $951Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Oct 11–Oct 18ORD → LHR · 7 nights |  JetBlue1 stop · 14h 52m | $964Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Apr 10–Apr 17MDW → LHR · 7 nights | Delta2 stops · 30h 26m | $976Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jun 1–Jun 8ORD → LHR · 7 nights | JetBlue1 stop · 15h 40m | $997Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Dec 28–Jan 4MDW → LHR · 7 nights | DeltaVirgin Atlantic2 stops · 15h 22m | $1,002Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jun 27–Jul 4ORD → LHR · 7 nights | Tap Air Portugal1 stop · 18h 50m | $1,026Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jul 23–Jul 30MDW → LHR · 7 nights | Delta1 stop · 12h 10m | $1,099Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jun 1–Jun 8MDW → LHR · 7 nights | Delta1 stop · 11h 20m | $1,158Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Oct 11–Oct 18MDW → LHR · 7 nights | DeltaVirgin Atlantic1 stop · 12h 26m | $1,269Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
| Jun 27–Jul 4MDW → LHR · 7 nights | Delta1 stop · 12h 10m | $1,370Select return to confirmChecked Sep 27 | Google Skyscanner ↗ |
No samples match these filters. Try another airport or trip length.
Prices can change. Cabin baggage and checked bags are not assumed included. Confirm the complete itinerary, airline fare rules and final price on the booking site.
ORD → LHR · Jan 23–Jan 30, 2027
| Observation date | Price |
|---|---|
| Jul 29, 2026 | $718 |
| Jul 30, 2026 | $720 |
| Jul 31, 2026 | $733 |
| Aug 1, 2026 | $734 |
| Aug 2, 2026 | $735 |
| Aug 3, 2026 | $735 |
| Aug 4, 2026 | $735 |
| Aug 5, 2026 | $735 |
| Aug 6, 2026 | $735 |
| Aug 7, 2026 | $735 |
| Aug 8, 2026 | $736 |
| Aug 9, 2026 | $736 |
| Aug 10, 2026 | $736 |
| Aug 11, 2026 | $736 |
| Aug 12, 2026 | $736 |
| Aug 13, 2026 | $736 |
| Aug 14, 2026 | $736 |
| Aug 15, 2026 | $700 |
| Aug 16, 2026 | $700 |
| Aug 17, 2026 | $736 |
| Aug 18, 2026 | $699 |
| Aug 19, 2026 | $699 |
| Aug 20, 2026 | $699 |
| Aug 21, 2026 | $699 |
| Aug 22, 2026 | $699 |
| Aug 23, 2026 | $700 |
| Aug 24, 2026 | $700 |
| Aug 25, 2026 | $699 |
| Aug 26, 2026 | $699 |
| Aug 27, 2026 | $699 |
| Aug 28, 2026 | $700 |
| Aug 29, 2026 | $699 |
| Aug 30, 2026 | $674 |
| Aug 31, 2026 | $674 |
| Sep 1, 2026 | $698 |
| Sep 2, 2026 | $698 |
| Sep 3, 2026 | $637 |
| Sep 4, 2026 | $603 |
| Sep 5, 2026 | $636 |
| Sep 6, 2026 | $637 |
| Sep 7, 2026 | $637 |
| Sep 8, 2026 | $603 |
| Sep 9, 2026 | $603 |
| Sep 10, 2026 | $604 |
| Sep 11, 2026 | $604 |
| Sep 12, 2026 | $637 |
| Sep 13, 2026 | $637 |
| Sep 14, 2026 | $604 |
| Sep 15, 2026 | $637 |
| Sep 16, 2026 | $559 |
| Sep 17, 2026 | $484 |
| Sep 18, 2026 | $484 |
| Sep 19, 2026 | $485 |
| Sep 20, 2026 | $485 |
| Sep 21, 2026 | $485 |
| Sep 22, 2026 | $590 |
| Sep 23, 2026 | $590 |
| Sep 24, 2026 | $590 |
| Sep 25, 2026 | $722 |
| Sep 26, 2026 | $719 |
| Sep 27, 2026 | $674 |
Google Flights price history returned through Scrapingdog for the dates and settings above. It is not a destination-wide average or a prediction. Source checked Sep 27, 2026.
Airport context and source-backed details to help you compare the whole journey.
London, United Kingdom · Airport coordinates 51.471, -0.460
Lowest sample to LHR: $674 round trip from ORD, Jan 23–Jan 30. Different arrival airports may use different dates.
Airport informationThis page searches LHR — London Heathrow Airport. Airport coverage follows the destination city market in the passenger dataset, with minor airports excluded. Always check the airport code on both legs: a city search can include different arrival airports, and the cheapest option may not be closest to where you are staying.
Read the sourceBTS recorded 528,855 scheduled passengers departing O’Hare and Midway for this destination city market from 2025-07 to 2026-06. That puts it at number 26 in our selected ranking. These are historical on-flight market passengers, not unique travelers, current flight frequencies or a measure of search popularity.
Read the sourceHeathrow lists Heathrow Express, the Elizabeth line and the Piccadilly line among its rail options. They serve different London stations, so compare the onward journey to your accommodation before picking an arrival airport. Check the operator for your terminal and travel-day service.
Read the sourceGatwick Express serves London Victoria. Thameslink also connects Gatwick with London Bridge, Blackfriars, Farringdon and St Pancras International. The better arrival airport can depend on which London neighborhood you need; our flight comparison excludes rail fares.
Read the sourceKeep an eye on the whole travel budget, from your first night to your last mile.
Compare places to stay in London. Add your dates, check the location, and compare the final total and cancellation terms.
Explore London stays ↗Booking.com · choose your travel datesPlanning a drive beyond London? Compare rental cars, mileage, deposits and pickup hours. City-only trip? Public transit may suit you better.
Compare rental cars ↗Discover Cars · enter LHR and your datesThese are planning links, not priced offers. Hotel and car availability is checked by the provider. We currently receive no commission from these links.
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The lowest seven-night round-trip search fare in our archive is $674, recorded Sep 27, 2026 for ORD to LHR, Jan 23–Jan 30, 2027. Our route archive starts Sep 27, 2026. This is our observed record, not an industry-wide all-time low, a verified booking price or a current offer.
Our lowest current seven-night sample is $674 round trip for one adult in economy, from ORD to LHR, Jan 23–Jan 30, 2027. It was checked Sep 27, 2026. This is a dated search result, not a guaranteed ticket price; confirm the return and full fare conditions before paying.
For the matched Jan 23–Jan 30, 2027 search, ORD had the lowest sample at $674. The highest and lowest airport fares were $274 apart. That applies to those dates and settings only. Try other matched dates and add your own ground transport cost in the airport calculator above.
The current sample includes a nonstop outbound from ORD to LHR on Dec 2, 2026, with a round-trip search fare of $868. Check the return direction separately: a nonstop outbound does not guarantee a nonstop return.
The travel-period chart compares only the dates we sampled. It cannot establish the cheapest month of the year. Start with a promising sampled period, then check nearby dates with the same trip length. The separate history chart tracks one specific search over time; it is not a travel calendar.
This destination market includes London Heathrow Airport (LHR). Check the exact arrival code on the fare you choose, then compare the onward journey to your accommodation. The arrival section links airport information and our source-backed planning notes.
Not necessarily. The buttons open separate searches with matching airports and dates when a dated sample is available. Providers can show different airlines, sellers, baggage rules and live prices. The sampled Google Flights price is never a Skyscanner quote.
Do not assume bags are included unless the provider explicitly confirms them. Our research shows flight search fares; the accommodation and rental-car links are separate planning tools. Compare the final total, cancellation terms and location before booking any part of the trip.
Answers use the dated research and sources on this page. Read our flight-saving field notes for a broader planning checklist.
Get our best flight finds in your inbox ↗This page contains 243 current search-result observations across 26 airport/date searches. Route research is compiled by the Chicago Flight Research desk from the sources below.
Destination photography: photographer, source and reuse license. Airline logos identify the carriers shown in results; no partnership is implied.
BTS demand period: 2025-07 to 2026-06. Searches use one adult, economy, USD and the US market. We do not sell tickets, guarantee fares, or infer baggage inclusions. Read the full methodology
