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Cheap Flights in September
Looking for cheap flights in September?
Dates
Wed, Oct 21 – Fri, Oct 23
No. of travellers & Class
1 Traveller · Economy
Find the best September flight deals to top domestic and international destinations. Triwize compares fares across 500+ airlines to help you fly in September for less. Whether you're planning a post-summer beach getaway, an early autumn city break, or affordable international journeys. Book affordable September airfare deals with Triwize industry insights.
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Round trip flight deals
The card below shows the cheapest round-trip fares currently available. Updated every 24 hours. Click any to search available seats.
Enter your travel dates to find the best prices
Wed, 3 Nov - Fri, 5 Nov
9:45SEA
17h 00mNon-stop
05:45SIN
9:00SIN
14h 10mNon-stop
08:10SEA
$653Economy · per person
Wed, 3 Nov - Fri, 5 Nov
12:05LAX
16h 35mNon-stop
7:40SIN
20:45SIN
16h 05mNon-stop
21:50LAX
$857Economy · per person
Wed, 3 Nov - Fri, 5 Nov
7:00LAX
25h 35m1 stop
12:10SIN
20:45SIN
16h 5mNon-stop
21:50LAX
$855Economy · per person
Wed, 3 Nov - Fri, 5 Nov
08:37LAX
29h 38m2 stops
05:15SIN
07:00SIN
19h 32m1 stop
11:32LAX
$873Economy · per person
Wed, 3 Nov - Fri, 5 Nov
13:18ONT
25h 57m2 stops
06:15SIN
8:45SIN
18h 27m1 stop
12:12ONT
$878Economy · per person
Wed, 3 Nov - Fri, 5 Nov
06:00ONT
21h 35m1 stop
18:35SIN
08:45SIN
26h 18m1 stop
20:01ONT
$873Economy · per person
Best Time to Book Flights in September
Finding the best time to book flights in September can help you save money.
Domestic Flights
For cheap domestic flights in September, book around 1 to 2 months in advance (July through August).
International Flights
For long-haul routes like flights to India in September, book 2 to 4 months in advance.
Labor Day Window
Demand hikes around Labor Day weekend (early September). Book holiday dates in advance.
Tips for Booking Cheap September Flights
Triwize helps travelers look beyond the first fare they see and compare smarter options across dates, routes and airlines.
•
Flexible Date Search: Compare nearby dates to find cheap rates.
•
Fly Midweek: Avoid Sunday evening and Friday afternoon flights. Midweek flying helps in getting the best discounts.
•
Target Post-Labor Day Travel: Make your trip plans after Labor Day to avoid higher fares.
•
Check Alternate Airports: Compare primary and secondary hubs for cheap prices.
•
Set Price Alerts: Track autumn fare to get deals, when carriers open discounts.
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Everything you need to know before you book
Quick Facts - September Flights
Everything you need to know before you book, in one place
A traveller's guide
Where to Fly Cheap in September — Top Vacation Destinations
Looking for the cheapest places to fly in September? The autumn season arrival offers low fares across beaches, major European capitals, and cultural spaces.
Bangkok, Thailand
BKK/DMK
Hub Airlines
Thai Airways, IndiGo, AirAsia
Key Feature
Low shoulder-season hotel rates and vibrant street food culture
Cancun, Mexico
CUN
Hub Airlines
American, United, Volaris
Key Feature
Cheaper off-peak Caribbean resort rates before winter demand peaks
Hanoi, Vietnam
HAN
Hub Airlines
VietJet Air, Vietnam Airlines
Key Feature
Cool autumn weather and low-cost street cuisine across the Old Quarter
New Delhi, India
DEL
Hub Airlines
Air India, United, American
Key Feature
Favorable early autumn weather and pleasant travel conditions
Athens, Greece
ATH
Hub Airlines
Aegean Airlines, Scoot, IndiGo
Key Feature
Post-summer European price drops with warm Mediterranean weather
London, UK
LHR/LGW
Hub Airlines
British Airways, Virgin Atlantic, Delta
Key Feature
Low off-season transatlantic airfares following summer peak
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Frequently Asked Questions
Is September a cheap month to fly?
September is considered one of the cheapest months of the year for flying.
When should I book September flights?
For booking domestic flights, book 1 to 2 months in advance. International routes should be booked 2 to 4 months before.
What are the cheapest days to fly in September?
Tuesdays, Wednesdays, and Saturdays are usually the cheapest days to fly due to less demand.
Are flights to Australia cheap in September?
September marks the arrival of spring in Australia, offering moderate prices.
Are flights to India cheap in September?
Flights to India are considerably increased before the arrival of festivals and winter travel seasons.
Are flights to the United Kingdom cheap in September?
Yes, flights to the UK are lower in price after summer.
Does Triwize charge booking fees?
Triwize provides transparent fare listings with a complete breakdown of flight costs before booking.
Can I speak to a human agent before booking?
Yes, Triwize customer support agents are available to assist with custom itineraries or booking queries.
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Terms and Conditions : Fares are sourced across 500+ airlines and include all taxes, surcharges, and Triwize service fees. Displayed prices are subject to change until ticketed. Tickets are nonrefundable, nontransferable, and subject to airline restrictions; name changes are not permitted. Triwize Coins are earned on qualified bookings, hold no cash value, are non-transferable, and may be modified or discontinued at any time. See full Terms for details.