The airlines will sell 10,000 tickets with prices ranging from VND100,000 ($4.8) to VND1 million ($48).
The promotion is set to serve travellers flocking to Viet Nam International Travel Mart in the capital in April.
What the stars mean:
★ Poor ★ ★ Promising ★★★ Good ★★★★ Very good ★★★★★ Exceptional