Update: Some offers mentioned below are no longer available. View the current offers here. Airfare deals are typically only available on limited dates. We recommend you use Google Flights to find dates to fly, then book through an online travel agency such as Orbitz or Expedia, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. However, if you’re using The Platinum Card® from American Express, you’ll need to book directly with the airline or through the Amex Travel portal to get 5x MR points. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz or Expedia’s courtesy cancellation if you’re unable to get the time away from work or family.It’s tea time! Round-trip flights from across the US to London are on sale. You can fly from Boston (BOS), Los Angeles (LAX), Newark (EWR), New York (LGA/JFK), Denver (DEN), Las Vegas (LAS), Miami (MIA), Chicago (ORD), Philadelphia (PHL) and Austin (AUS) to London Heathrow (LHR) and London Gatwick (LGW) from $397 round-trip. Note that select deals don’t apply during Christmas/New Years Eve.If it’s not your first time in London (or you find it to be a bit too fast-paced or posh) and you’re interested in seeing some sights outside of the city, here are five easy day trips you can take from London to slow things down for a bit — use get your Get Your Guide to book activities. And don’t miss out on the great deals you can snag using your points and miles.To search, head to Google Flights and enter your origin and destination cities. Scroll through the calendar function to find dates and prices that work for you. Finally, click through to book directly with the airline or through an OTA like Priceline or Expedia.Airlines: KLM, Air Canada, British Airways, Swiss, Air CanadaRoutes: BOS/LAX/EWR/DEN/ORD/PHL/JFK/LGA/LAS/MIA/AUS to LHR/LGWCost: $397+ round-trip in full-service carriersTravel Dates: October 2018 – March 2019Pay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Premier® Card, Chase Sapphire Reserve, Citi Prestige (5x on airfare plus excellent trip delay insurance) or Chase Sapphire Preferred Card (2x on travel)Booking Link: Priceline, Orbitz, Expedia or directly with the airlineHere are a few examples of what you can book:Boston (BOS) to London (LHR) for $397 round-trip on Air Canada/Swiss:New York (JFK) to London (LHR) for $404 round-trip on British Airways:Boston (BOS) to London (LHR) for $408 round-trip on Delta/KLM:Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Chicago (ORD) to London (LHR) for $427 round-trip on United/Swiss:Philadelphia (PHL) to London (LHR) for $429 round-trip on Delta:New York (LGA) to London (LHR) for $482 round-trip on KLM:Newark (EWR) to London (LHR) for $482 round-trip on Delta via KLM:Los Angeles (LAX) to London (LHR) for $481 round-trip on Delta via KLM:Las Vegas (LAS) to London (LHR) for $488 round-trip on Air Canada:Miami (MIA) to London (LHR) for $499 round-trip on KLM:Austin (AUS) to London (LHR) for $499 round-trip on KLM:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as The Platinum Card® from American Express (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, Citi Premier, Citi Prestige (5x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.H/T: Scott’s Cheap Flights
