Find flights
When to book
FAQs

Cheap flights from Portsmouth to Chicago O'Hare Intl Airport

LHR — ORD
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to O'Hare Intl

Popular in

August

Cheapest in

February

Average price

£638
Highest demand for flights based on searches. 10% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Chicago O'Hare Intl Airport

What is the cheapest time of day to fly from P0R to ORD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Chicago O'Hare Intl Airport as you normally would.

Related info for your journey

  • What are the most reliable airlines from Portsmouth to Chicago O'Hare Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Chicago O'Hare Intl Airport consider choosing Air Canada (88%), Austrian Airlines (88%) or United Airlines (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Chicago O'Hare Intl Airport?

    On average you can expect to pay £1,679 for a flight from Portsmouth to Chicago O'Hare Intl Airport. The cheapest flight overall is £411 while the most popular route, (Southampton Eastleigh - Chicago O'Hare Intl) is currently priced at £849.

  • Can I find deals for flights from Portsmouth to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Portsmouth to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to O'Hare Intl.

  • Can I find deals for business class flights from Portsmouth to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Portsmouth to O'Hare Intl 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Portsmouth to O'Hare Intl

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£213Average£557FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£357Average£513FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£390Average£589FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£394Average£564FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£408Average£856FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£425Average£695FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£431Average£732FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£436Average£774FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
JetBlueCheapest£446Average£687FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Austrian AirlinesCheapest£450Average£696FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Portsmouth to O'Hare Intl?

When you search for this flight from Portsmouth to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to O'Hare Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Portsmouth to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Portsmouth to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to O'Hare Intl 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.

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.