1. Choose Budget Airlines in Vietnam

Vietnam is home to several low-cost carriers that regularly offer competitive prices:

  • VietJet Air – Known for its flash sales and promo codes

  • Bamboo Airways – A newer airline offering solid service and good deals

  • Pacific Airlines (operated by Vietnam Airlines) – Often features competitive rates

Tip: Don’t skip Vietnam Airlines, the national carrier. While not a budget airline, they occasionally offer promotional fares that rival low-cost options.

How to Book Cheap Domestic Flights in Vietnam

VietJet Air is known for budget airline in Vietnam

2. Book in Advance (But Not Too Early)

  • Best time to book: 3–6 weeks before your travel date.

  • Avoid peak holidays: Tet (Lunar New Year), summer school holidays (June–August), and major public holidays are expensive periods.

  • Mid-week flights (Tuesday–Thursday) tend to be cheaper than weekend ones.

3. Compare Prices on Aggregators

Use websites like:

  • Skyscanner – Great for flexible dates and price alerts

  • Google Flights – Clear interface, reliable filtering options

  • Traveloka, 12Go Asia, and Vntrip – Useful for local deals and regional carriers

Once you find a good fare, double-check the price on the airline’s official website—it’s often cheaper to book directly.

4. Sign Up for Fare Alerts and Promotions

Many Vietnamese airlines frequently launch flash sales. Stay ahead of the game by:

  • Subscribing to airline newsletters

  • Following airlines on social media for promo codes

  • Setting up fare alerts on booking platforms

VietJet, for instance, often runs promotions like "Zero VND tickets" (you only pay taxes and fees), especially around holidays or special events.

How to Book Cheap Domestic Flights in Vietnam

Vietjet’s inside look

5. Be Flexible With Dates and Airports

If your travel plans allow, try searching for flights:

  • One or two days before or after your target date

  • Between nearby airports (e.g., Hanoi vs. Hai Phong, or Da Nang vs. Chu Lai)

Bonus tip: Early morning or late-night flights are often cheaper—and come with fewer delays.

6. Consider Flight + Hotel Combos

Sometimes booking your flight together with accommodation can unlock extra discounts. Platforms like Agoda, Traveloka, and even Vietnam Airlines’ package deals are worth browsing.

7. Use E-wallets or Local Payment Methods for Discounts

Vietnamese booking platforms occasionally offer promo codes for paying via MoMo, ZaloPay, or local banks. These deals may not be visible on international sites, so it’s worth checking local apps if you’re in the country.

How to Book Cheap Domestic Flights in Vietnam

Use MoMo in Vietnam to have better promo codes

Bonus: Popular Domestic Routes in Vietnam

If you're planning your route, here are a few of the most affordable and well-served routes:

  • Hanoi – Ho Chi Minh City

  • Ho Chi Minh City – Da Nang

  • Hanoi – Hue

  • Ho Chi Minh City – Phu Quoc

  • Da Nang – Nha Trang

These routes are flown daily by multiple carriers, meaning you’re more likely to find great deals.

Learning how to book cheap domestic flights in Vietnam is all about timing, tools, and flexibility. With the right hacks, you can hop between cities, islands, and mountains without emptying your wallet.

Want a hassle-free Vietnam adventure? Let New Asia Tours help you plan your journey, from flights and hotels to curated local experiences. Contact us today to start crafting your perfect Vietnam tour!