Delta has no single international phone number that works from every country. Its International Sales and Service line, 800-241-4141, is open 24 hours a day, 7 days a week, but it is toll-free from the US only, so from abroad you call Delta's local number for your country, for example +44 20 7660 0767 in the UK or +353 1 659 0298 in Ireland. American Airlines works the same way: its UK line, +44 20 7660 2300, is answered in English 24 hours a day, and its US line, 800-433-7300, is open 24 hours (Central Time) but only from the US and Canada. Every number below was checked in October 2026 on Delta's Help Center and American's worldwide numbers page.

If your flight has just been cancelled and you are standing in an airport abroad, open the airline's app first (it may already have rebooked you), then call the local number, and ring it over Wi-Fi rather than on a roaming mobile.

Which airline numbers do not work from abroad?

Every number starting 800, 888, 877, 866, 855, 844 or 833 is a US toll-free number. Foreign mobile networks usually cannot connect to them, and if a call does go through, you may pay international or roaming rates anyway. Country toll-free numbers have the same problem in reverse: they only work inside that country.

Number	Airline	Works from...
800-221-1212 (reservations)	Delta	US only, toll-free
800-241-4141 (International Sales and Service)	Delta	US only, toll-free, despite the name
800-433-7300 (reservations)	American	US and Canada, toll-free
1-800-864-8331 (1-800-UNITED-1)	United	US only, toll-free
1800-144917	Delta	Inside Australia only
1 800 123-6645	Delta	Inside India only
000-800-0501-944	American	Inside India only
0570-077733 (Navi-Dial)	Delta	Inside Japan only

If the only number you have is an 800 number, our guide to calling US toll-free numbers from abroad explains the workarounds.

Delta Air Lines numbers outside the US

Delta's US reservations line (800-221-1212) and its International Sales and Service line (800-241-4141) are open 24 hours a day, 7 days a week. Outside the US, Delta lists a number for each country. These are the ones most travelers need, as printed on Delta's Help Center, with the full international format added:

Region	Country	Delta number	Notes from Delta
Europe	United Kingdom	+44 20 7660 0767	All cities
Europe	Ireland	+353 1 659 0298	All cities
Europe	France	+33 9 69 39 17 79	0.35 euro a minute within France
Europe	Germany	+49 69 2999 3771	All cities
Europe	Italy	+39 02 3859 1451	All cities
Europe	Spain	+34 913 75 41 46	All cities
Europe	Netherlands	+31 20 721 9128	Amsterdam
Asia	Japan	+81 50 3850 8388	Delta's line for IP phones and overseas callers
Asia	South Korea	+82 2 3789 5535	English 24 hours, Korean weekdays 9am to 6pm
Pacific	New Zealand	+64 9 888 6460	Auckland
Middle East	Israel	+972 3 513 8000	Sunday to Thursday, 9:00 to 17:00
Middle East	UAE (Dubai)	+971 4 397 0118	Dubai
Africa	South Africa	+27 11 408 8200	All cities

In Mexico, Delta lists 01-800-266-0046, a domestic toll-free number that only works inside Mexico. Mexico dropped the 01 prefix in 2019, so if it does not connect, dial 800-266-0046. For anywhere else, Delta's Help Center has the full list by region.

Delta also lets you message a reservations agent instead of calling, and its flight-changes page says that after a big delay or schedule change it will usually try to rebook you automatically. Check My Trips or the Fly Delta app before you join a queue. Medallion members should check the Contact Us section of the Fly Delta app for their dedicated line.

American Airlines numbers outside the US

In the US and Canada, American's reservations lines are 800-433-7300 (English) and 800-633-3711 (Spanish), both 24 hours. Hours are in Central Time for US lines and local time for the country lines below. American notes that not all international calls to it are toll-free and mobile rates may be higher.

Country	American number	Hours (local)
United Kingdom	+44 20 7660 2300	English 24 hours
Ireland	+353 1 533 9951	English 24 hours
Germany	+49 69 5899 6485	English 24 hours, German weekdays 8am to 6pm and weekends 9am to 5pm
Spain	+34 912 158 999	Spanish and English 24 hours
Italy	+39 02 3859 1485	Weekdays 8am to 6pm, weekends 9am to 5pm
Netherlands	+31 20 532 3275	English 24 hours
Turkey	+44 20 7660 2300	American routes Turkey to its UK line
Mexico (Mexico City)	+52 55 5209 1400	24 hours
Brazil	+55 11 2500 1573	English 24 hours, Portuguese 6am to 10:30pm
Japan	+81 3 4333 7675	Japanese and English 24 hours
Australia	+61 2 9101 1948	English 24 hours
Israel	+972 3 721 9497	English 24 hours, Hebrew Sunday to Thursday 9am to 5pm

Two numbers on American's list cost more than a normal call: France (0821-980-999, 0.12 euro a minute plus your phone company's charge) and the UK alternative 0844-369-9899 (5p a minute plus access charge). Use the London number instead where you can.

A useful detail: both the Delta and American UK numbers are ordinary London landlines. Anyone can dial them from any country as a normal international call to the UK, which is how American serves callers in Turkey.

United Airlines from abroad

United's US reservations line, 1-800-864-8331 (1-800-UNITED-1), is a toll-free number, so treat it as US-only like the others. United publishes its local numbers on its International Reservation Numbers page. That page only loads in a full browser, and we could not confirm its country numbers or hours for this guide in October 2026, so they are not reprinted here. Open it on your phone or laptop, pick the country you are in, and use that number.

Two things to know before you look:

Search results are full of fake airline numbers. A search for United's UK number in October 2026 returned PDFs and social media posts listing call centers that are not United. Only dial a number you found on united.com or in the United app. The same goes for Delta and American.
Try the app before the phone. After a cancellation, check My Trips in the United app or on united.com first. If a new flight is offered there, you can accept it without waiting in a phone queue.

When is the best time to call from abroad?

The airlines do not publish wait times. Queues are longest when bad weather or an outage cancels flights across the US, because everyone affected calls at once. Calling when most of the US is asleep, roughly midnight to 6am Eastern Time, means you are not competing with the US daytime crowd. Here is that window in local time from November to March. From March to early November, the UK and Europe stay the same, the other rows are an hour earlier, and Sydney is two hours earlier.

You are in	Midnight to 6am Eastern is roughly	Tip
UK and Ireland	5am to 11am	Call over breakfast
Western Europe (France, Germany, Spain, Italy)	6am to noon	Call before your day starts
India	10:30am to 4:30pm	Easy daytime calls
Japan and South Korea	2pm to 8pm	Afternoon
Sydney	4pm to 10pm	Afternoon or evening
Mexico City	11pm to 5am	Hardest region, try early evening as well

Local country lines that are not 24 hours follow local business hours, so check the hours column above.

What to have ready before you dial

Your six-character confirmation code (record locator) and ticket number.
Your frequent flyer number, if you have one. Delta asks SkyMiles members to have their account number ready to speed up the call.
The flight number and date, plus any new flight you want.
A pen, or a notes app, for the agent's name and any reference number.
A charged phone or laptop and a stable Wi-Fi connection. Holds can be long.

On the phone menu, say what you need in a few words ("cancelled flight", "change flight") rather than waiting through every option. If the system offers a call back, take it, and give a number you can answer abroad.

What does the call cost from a mobile abroad?

A long hold on a roaming mobile is the expensive way to do this. A US traveler on Verizon pays $12 for a TravelPass day (calls included). Without a pass or bolt-on, roaming calls are billed per minute, and so is the time spent on hold. A call over Wi-Fi from a browser costs a few cents a minute:

A 45-minute call, mostly on hold	Cost
US mobile on Verizon TravelPass	$12 for the day
Roaming mobile with no pass	Your carrier's per-minute roaming rate, check before you call
BoraPhone to a regular (not toll-free) US number, from $0.04 a minute	About $1.80
BoraPhone to the London numbers above, UK landline rate $0.04 a minute	About $1.80
BoraPhone to American's Tokyo number, Japan landline rate $0.17 a minute	About $7.65

BoraPhone rates are at the time of writing (October 2026); the dialer shows the exact rate for the number before you call. It runs in a browser on any Wi-Fi, so you can call from a hotel lobby on your laptop and keep your phone free for the airline app. Billing is per minute, rounded up, and failed calls are refunded. For other countries, the full rates list has every destination.

If your trip has gone wrong in other ways too, see our guides to calling a hotel abroad and avoiding roaming charges on calls.

Frequently asked questions

What is Delta's international phone number?

Delta does not have one worldwide number. Its International Sales and Service line, 800-241-4141, is open 24 hours but is toll-free from the US only. Outside the US, use the number Delta lists for your country, such as +44 20 7660 0767 in the UK, from Delta's Help Center.

Can I call an airline's 800 number from abroad?

Usually not from a foreign mobile network, and when it does connect you may pay international or roaming rates. Use the airline's local number for the country you are in, or an internet calling service that routes the call through the US.

What is United Airlines' international phone number?

United does not have one number for every country. Its US line, 1-800-864-8331, is toll-free and meant for callers in the US. From abroad, use the local number for your country on United's International Reservation Numbers page, and ignore numbers posted in PDFs or social media.

Should I call the airline or use the app after a cancellation abroad?

Check the app first. Delta says it will usually try to rebook you automatically after a big delay or schedule change, and both Delta and American let you change many trips online. Call if the app cannot offer a flight that works, or if your ticket is one of the types the airline says must be changed by phone.

Is it cheaper to call the airline's local number or its US number?

From a mobile abroad, the local number is usually cheaper because it is a domestic call. From a browser calling service, a regular US number and a London landline both cost from $0.04 a minute at the time of writing, so pick the line with the right hours and language. Since the airlines' main US lines are toll-free, a London number is often the easier choice.

Delta International Phone Number (Plus American and United)